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Space in topology mathematics
In topology, the wedge sum is a "one-point union" of a family of topological spaces. Specifically, if X and Y are pointed spaces (i.e. topological spaces
Wedge_sum
Describes the fundamental group in terms of a cover by two open path-connected subspaces
{\displaystyle (X,x)} and ( Y , y ) {\displaystyle (Y,y)} we can form their wedge sum, ( X ∨ Y , p ) {\displaystyle (X\vee Y,p)} , by taking the quotient of
Seifert–Van_Kampen_theorem
Algebraic tool for computing topological spaces' invariants
\\0&{\mbox{if }}n\neq 1.\end{cases}}} Let X {\displaystyle X} be the wedge sum of two spaces K {\displaystyle K} and L {\displaystyle L} , and suppose
Mayer–Vietoris_sequence
Logic symbol resembling a "V"
The descending wedge symbol ∨ may represent: Logical disjunction in propositional logic Join in lattice theory The wedge sum in topology The V sign, a
Descending_wedge
Topics referred to by the same term
Product topology Cap product Cup product Slant product Smash product Wedge sum (or wedge product) Internal product, in a monoidal category Product (category
Product
Index of articles associated with the same name
The wedge product in topology may refer to: The wedge sum, which joins two spaces at a point The smash product, the product in the category of pointed
Wedge_product_(topology)
Algebra associated to any vector space
(x_{1}\wedge \cdots \wedge x_{p+1})={\frac {1}{p+1}}\sum _{j<\ell }(-1)^{j+\ell +1}[x_{j},x_{\ell }]\wedge x_{1}\wedge \cdots \wedge {\hat {x}}_{j}\wedge \cdots
Exterior_algebra
Topics referred to by the same term
in cryptography Sum rule in differentiation, in calculus Sum rule in integration, in calculus Sum rule in quantum mechanics Wedge sum, a one-point union
Sum
Operation that combines groups
fundamental groups of the spaces. In particular, the fundamental group of the wedge sum of two spaces (i.e. the space obtained by joining two spaces together
Free_product
Operation in cohomology theory
the cup product of differential forms is induced by the wedge product. In other words, the wedge product of two closed differential forms belongs to the
Cup_product
Mathematical group of the homotopy classes of loops in a topological space
free group on r {\displaystyle r} letters. The fundamental group of a wedge sum of two path connected spaces X {\displaystyle X} and Y {\displaystyle
Fundamental_group
Combination of pointed topological spaces
of X × Y. So the union of these subspaces can be identified with the wedge sum X ∨ Y = ( X ⨿ Y ) / ∼ {\displaystyle X\vee Y=(X\amalg Y)\;/{\sim }} .
Smash_product
upper bound operation. 3. In topology, denotes the wedge sum of two pointed spaces. ∧ (wedge) 1. Denotes logical conjunction, and is read as "and"
Glossary of mathematical symbols
Glossary_of_mathematical_symbols
Topics referred to by the same term
of audio/video services. In mathematics, a space constructed with the wedge sum, for example, the bouquet of circles Bouquet, an alternative name for
Bouquet
Topics referred to by the same term
up wedge in Wiktionary, the free dictionary. A wedge is a triangular-shaped simple machine. Wedge, The Wedge, or Wedges may also refer to: Wedge (footwear)
Wedge_(disambiguation)
Mathematical form
slant product in algebraic topology the smash product and wedge sum (sometimes called the wedge product) in homotopy A few of the above products are examples
Product_(mathematics)
Algebraic construct classifying topological spaces
{\displaystyle S^{n}} to the wedge sum of two n-spheres that collapses the equator and h is the map from the wedge sum of two n-spheres to X that is
Homotopy_group
Topological space with a distinguished point
the basepoint. The coproduct in the category of pointed spaces is the wedge sum, which can be thought of as the 'one-point union' of spaces. The smash
Pointed_space
Type of topological space
topology, where they are closely related to free groups. A rose is a wedge sum of circles. That is, the rose is the quotient space C/S, where C is a
Rose_(topology)
Category-theoretic construction
pointed spaces, fundamental in homotopy theory, the coproduct is the wedge sum (which amounts to joining a collection of spaces with base points at a
Coproduct
Topological space arising from a usual graph
fact, X ∖ T {\displaystyle X\setminus T} is homotopy equivalent to a wedge sum of circles. Forming the topological space associated to a graph as above
Graph_(topology)
Topological space defined by the union of circles
with this complication. The Hawaiian earring looks very similar to the wedge sum of countably infinitely many circles; that is, the rose with infinitely
Hawaiian_earring
Mathematical concept
analogous properties. A shellable complex is homotopy equivalent to a wedge sum of spheres, one for each spanning simplex of corresponding dimension.
Shelling_(topology)
Topological space with only one nontrivial homotopy group
( Z / 2 Z , 1 ) {\displaystyle K(\mathbb {Z} /2\mathbb {Z} ,1)} . The wedge sum of k unit circles ⋁ i = 1 k S 1 {\displaystyle \textstyle \bigvee _{i=1}^{k}S^{1}}
Eilenberg–MacLane_space
Most general completion of a commutative square given two morphisms with same domain
regarded as pushouts in this way. A special case of the above is the wedge sum or one-point union; here we take X and Y to be pointed spaces and Z the
Pushout_(category_theory)
Expression that may be integrated over a region
k {\displaystyle \sum _{i_{1},i_{2}\ldots i_{k}=1}^{n}f_{i_{1}i_{2}\ldots i_{k}}\,dx^{i_{1}}\wedge dx^{i_{2}}\wedge \cdots \wedge dx^{i_{k}}} for a collection
Differential_form
Mathematical algorithm for calculating area of a simple polygon
{\displaystyle A={\frac {1}{2}}\sum _{i=1}^{n}v_{i}\wedge v_{i+1}={\frac {1}{2}}\sum _{i=1}^{n}(x_{i}y_{i+1}-x_{i+1}y_{i})\;\mathbf {x} \wedge \mathbf {y} } Note that
Shoelace_formula
Algebraic topology uses abstract algebra to study topological spaces
Monodromy Homotopy lifting property Mapping cylinder Mapping cone (topology) Wedge sum Smash product Adjunction space Cohomotopy Cohomotopy group Brown's representability
List of algebraic topology topics
List_of_algebraic_topology_topics
∨ R P 2 {\displaystyle \mathbb {RP} ^{2}\vee \mathbb {RP} ^{2}} , the wedge sum of projective planes. For each path, there is one 2-cell glued to each
Presentation_complex
Homotopy operation
obtained by attaching a ( k + l ) {\displaystyle (k+l)} -cell to the wedge sum S k ∨ S l {\displaystyle S^{k}\vee S^{l}} ; the attaching map is a map
Whitehead_product
Cohomology theory
K(n) is free, i.e. a wedge of suspensions of K(n). They are complex oriented (at least after being periodified by taking the wedge sum of (pn − 1) shifted
Morava_K-theory
Type of digital logic implemented by Boolean circuits
{\begin{aligned}(A\wedge B)\vee (\lnot A\wedge C)\vee (B\wedge C)&=(A\wedge B)\vee (\lnot A\wedge C)\\(A\vee B)\wedge (\lnot A\vee C)\wedge (B\vee C)&=(A\vee B)\wedge (\lnot
Combinational_logic
Way to extend a non-compact topological space
B ) / ( A ∨ B ) {\displaystyle A\wedge B=(A\times B)/(A\vee B)} where A ∨ B {\displaystyle A\vee B} is the wedge sum, and again, / denotes the quotient
Alexandroff_extension
Ancient Mesopotamian civilization from 3300 to 1900 BC
Sumer (/ˈsuːmər/ SOO-mər) is the earliest known civilization, located in the historical region of southern Mesopotamia (now south-central Iraq), emerging
Sumer
attaching map. If A is a space with one point then the adjunction is the wedge sum of X and Y. If X is a space with one point then the adjunction is the
Adjunction_space
{S} }{\partial t}}=\mathbf {S} \wedge \sum _{i}{\frac {\partial ^{2}\mathbf {S} }{\partial x_{i}^{2}}}+\mathbf {S} \wedge J\mathbf {S} .\qquad (2)} In 1+1
Landau–Lifshitz_model
Operation on differential forms
wedge dx^{i_{1}}\wedge \cdots \wedge dx^{i_{k}}+g\sum _{p=1}^{k}(-1)^{p-1}\,dx^{i_{1}}\wedge \cdots \wedge dx^{i_{p-1}}\wedge d^{2}x^{i_{p}}\wedge dx^{i_{p+1}}\wedge
Exterior_derivative
Branch of mathematics
Explicitly, X ∧ Y {\displaystyle X\wedge Y} is the quotient of X × Y {\displaystyle X\times Y} by the wedge sum X ∨ Y {\displaystyle X\vee Y} . Let I
Homotopy_theory
For a square matrix, the transpose of the cofactor matrix
_{1}\wedge \dots \wedge {\hat {\mathbf {e} }}_{j}\wedge \dots \wedge \mathbf {e} _{n}\mapsto \sum _{k=1}^{n}(\det A_{jk})\mathbf {e} _{1}\wedge \dots
Adjugate_matrix
In mathematics, invariant of square matrices
{\displaystyle v_{1}\wedge \cdots \wedge v_{n}\left(\sum _{i_{1}=1}^{n}a_{i_{1}1}e_{i_{1}}\right)\wedge \cdots \wedge \left(\sum _{i_{n}=1}^{n}a_{i_{
Determinant
Theorem of analytic continuations
In mathematics, the edge-of-the-wedge theorem implies that holomorphic functions on two "wedges" with an "edge" in common are analytic continuations of
Edge-of-the-wedge_theorem
{\displaystyle [\Sigma (A\vee B),X]} , where ∨ {\displaystyle \vee } denotes wedge sum. The generalised Whitehead product is then defined as the unique element
Generalised_Whitehead_product
Operation in calculus
two-form is a sum of the form G ( x , y , z ) d x ∧ d y + E ( x , y , z ) d y ∧ d z + F ( x , y , z ) d z ∧ d x . {\displaystyle G(x,y,z)\,dx\wedge dy+E(x,y
Integral
connected Path (topology) Homotopy Homotopy lifting property Pointed space Wedge sum Smash product Cone (topology) Adjunction space Topological algebra Topological
List of general topology topics
List_of_general_topology_topics
Type of golf club used in special situations
the sport of golf, a wedge is a subset of the iron family of golf clubs designed for special use situations. As a class, wedges have the highest lofts
Wedge_(golf)
On representability of a contravariant functor on the category of connected CW complexes
1962. Suppose that: The functor F: Hotcop → Set maps coproducts (i.e. wedge sums) in Hotc to products in Set: F ( ∨ α X α ) ≅ ∏ α F ( X α ) , {\displaystyle
Brown's representability theorem
Brown's_representability_theorem
Determinant of a subsection of a square matrix
J}(e_{1}\wedge \ldots \wedge e_{n})=\pm (\mathbf {A} ^{-1}e_{j_{1}})\wedge \ldots \wedge (\mathbf {A} ^{-1}e_{j_{k}})\wedge e_{i'_{1}}\wedge \ldots \wedge e_{i'_{n-k}}
Minor_(linear_algebra)
Differential form on a manifold which is permitted to have complex coefficients
any complex k-form can be decomposed uniquely into a sum of so-called (p, q)-forms: roughly, wedges of p differentials of the holomorphic coordinates with
Complex_differential_form
In geometry, a double wedge is the (closure of) the symmetric difference of two half-spaces whose boundaries are not parallel to each other. For instance
Double_wedge
Algebraic structure designed for geometry
e_{r}&=e_{1}\wedge e_{2}\wedge \cdots \wedge e_{r}\\&=\left(\sum _{j}[\mathbf {O} ]_{1j}a_{j}\right)\wedge \left(\sum _{j}[\mathbf {O} ]_{2j}a_{j}\right)\wedge \cdots
Geometric_algebra
Tools for studying groups based on techniques from algebraic topology
*\mathbb {Z} )} for n {\displaystyle n} letters, this is represented by a wedge sum of n {\displaystyle n} circles S 1 ∨ ⋯ ∨ S 1 {\displaystyle S^{1}\vee
Group_cohomology
Complex-valued function
^{k}A\right)=\sum _{1\leq i_{1}<\cdots <i_{k}\leq n}(e_{i_{1}}\wedge e_{i_{2}}\wedge \cdots \wedge e_{i_{k}},Ae_{i_{1}}\wedge Ae_{i_{2}}\wedge \cdots \wedge Ae_{i_{k}})}
Fredholm_determinant
Type of digital adder
i ) . {\displaystyle sc_{i}=(a_{i}\wedge b_{i})\vee (a_{i}\wedge c_{i})\vee (b_{i}\wedge c_{i}).} The entire sum can then be computed by: Shifting the
Carry-save_adder
Logic gate type
F ∧ G ∧ H ) ¯ . {\displaystyle Q={\overline {(A\wedge B\wedge C\wedge D)\vee (E\wedge F\wedge G\wedge H)}}.} Its logic table would have 256 entries, but
AND-OR-invert
{\displaystyle E_{*}} -Adams resolution since we no longer need to take a wedge sum of spectra for every generator. The construction of the E ∗ {\displaystyle
Adams_resolution
Property of topological spaces
with the behavior of final topologies under composition of functions. A wedge sum of CG-1 spaces is CG-1. The same holds for CG-2. This is also an application
Compactly_generated_space
{S} }{\partial t}}=\mathbf {S} \wedge \sum _{i}{\frac {\partial ^{2}\mathbf {S} }{\partial x_{i}^{2}}}+\mathbf {S} \wedge J\mathbf {S} } Magnetic field
List of nonlinear partial differential equations
List_of_nonlinear_partial_differential_equations
}})={\frac {m_{j}^{\,\,{\underline {n}}}}{\left({\frac {1}{\omega _{j}}}\sum _{i=1}^{c}m_{i}\omega _{i}\right)^{\underline {n}}}}} for xj = n ≤ mj, where
Wallenius' noncentral hypergeometric distribution
Wallenius'_noncentral_hypergeometric_distribution
geometric product is: a b = a ⋅ b + a ∧ b {\displaystyle ab=a\cdot b+a\wedge b} that is the sum of the usual dot (inner) product and the outer (exterior) product
Comparison of vector algebra and geometric algebra
Comparison_of_vector_algebra_and_geometric_algebra
C ( S ) {\displaystyle C(S)} is in fact homotopically equivalent to a wedge sum of spheres. The combinatorial distance on the 1-skeleton of C ( S ) {\displaystyle
Curve_complex
as the following quotient over the infinite symmetric product of the wedge sum of X with a copy of itself: Let τ : X ∨ X → X ∨ X be interchanging the
Symmetric_product_(topology)
… , v σ ( p + q ) ) ] , {\displaystyle [\omega \wedge \eta ](v_{1},\dotsc ,v_{p+q})={1 \over p!q!}\sum _{\sigma }\operatorname {sgn} (\sigma )[\omega (v_{\sigma
Lie algebra–valued differential form
Lie_algebra–valued_differential_form
On the homotopy groups of the infinite symmetric product of a connected CW complex
being a CW complex cannot be dropped offhand: Let X = CH ∨ CH be the wedge sum of two copies of the cone over the Hawaiian earring. The common point
Dold–Thom_theorem
Creationist political and social agenda
The wedge strategy is a creationist political and social agenda authored by the Discovery Institute, the hub of the intelligent design movement. The strategy
Wedge_strategy
Error-correcting codes used in wireless communication
{\displaystyle w\wedge z=(w_{1}\cdot z_{1},\ldots ,w_{N}\cdot z_{N}),} referred to as the wedge product (not to be confused with the wedge product defined
Reed–Muller_code
Matrix of inner products of vectors
v_{1}\wedge \cdots \wedge v_{n}} in terms of its projections onto the basis volumes e i 1 ∧ ⋯ ∧ e i n {\displaystyle e_{i_{1}}\wedge \cdots \wedge e_{i_{n}}}
Gram_matrix
Mathematical theory of topological spaces
Formality is preserved under products and wedge sums. For manifolds, formality is preserved by connected sums. On the other hand, closed nilmanifolds are
Rational_homotopy_theory
Mapping from p forms to p-1 forms
_{X}(dx_{1}\wedge \cdots \wedge dx_{n})=\sum _{r=1}^{n}(-1)^{r-1}f_{r}dx_{1}\wedge \cdots \wedge {\widehat {dx_{r}}}\wedge \cdots \wedge dx_{n},} where
Interior_product
Probability theorem
\sum _{k=0}^{\infty }\left|\Pr(S_{n}=k)-{\lambda _{n}^{k}e^{-\lambda _{n}} \over k!}\right|<2\left(1\wedge {\frac {1}{\lambda }}_{n}\right)\left(\sum
Le_Cam's_theorem
Map from multiple vectors to an underlying field of scalars, linear in each argument
i k . {\displaystyle d\omega :=\sum _{i_{1}<\ldots <i_{k}}da_{i_{1}\ldots i_{k}}\wedge dx^{i_{1}}\wedge \cdots \wedge dx^{i_{k}}.} A property of d {\displaystyle
Multilinear_form
Square root of the determinant of a skew-symmetric square matrix
\sum _{ijkl}B_{ik}B_{jl}A_{kl}e_{i}\wedge e_{j}=\sum _{kl}A_{kl}f_{k}\wedge f_{l}\\&\xrightarrow {\wedge n} {2^{n}n!}Pf(A)f_{1}\wedge \cdots \wedge f_{2n}={2^{n}n
Pfaffian
Element of an exterior algebra
Alternating: u ∧ u = 0. {\displaystyle \mathbf {u} \wedge \mathbf {u} =0.} The exterior product of k vectors or a sum of such products (for a single k) is called
Multivector
On products of sums of series products
{\displaystyle \left(\sum _{i=1}^{n}a_{i}c_{i}\right)\left(\sum _{j=1}^{n}b_{j}d_{j}\right)=\left(\sum _{i=1}^{n}a_{i}d_{i}\right)\left(\sum _{j=1}^{n}b_{j}c_{j}\right)+\sum
Binet–Cauchy_identity
F 2 {\displaystyle \mathbb {F} _{2}} . The reduced cohomology ring of wedge sums is the direct product of their reduced cohomology rings. The cohomology
Cohomology_ring
Sum of inverse squares of natural numbers
mathematical analysis with relevance to number theory, concerning an infinite sum of inverse squares. It was first posed by Pietro Mengoli in 1650 and solved
Basel_problem
Tree-based machine learning method for classification
{\displaystyle z=2\left({\sqrt {W_{+}(p\wedge c)W_{-}(p\wedge c)}}+{\sqrt {W_{+}(p\wedge \neg c)W_{-}(p\wedge \neg c)}}\right)+W(\neg p)} 11 P + = p ∧
Alternating_decision_tree
Natural moving frame in differential geometry of surfaces
\theta ^{a}=-\sum _{b=1}^{p}\theta _{b}^{a}\wedge \theta ^{b}\\\\0=\mathrm {d} \theta ^{\mu }=-\sum _{b=1}^{p}\theta _{b}^{\mu }\wedge \theta ^{b}\end{array}}\right\}\
Darboux_frame
Exterior algebraic map taking tensors from p forms to n-p forms
i_{k}}dx^{i_{1}}\wedge \dots \wedge dx^{i_{k}}\ =\ \sum _{i_{1}<\dots <i_{k}}\alpha _{i_{1},\dots ,i_{k}}dx^{i_{1}}\wedge \dots \wedge dx^{i_{k}}.} The
Hodge_star_operator
On the loop space of a wedge of spheres
theorem, proved by Peter Hilton (1955), states that the loop space of a wedge of spheres is homotopy-equivalent to a product of loop spaces of spheres
Hilton's_theorem
+ 1 ) , … , X σ ( k + l ) ) . {\displaystyle (\alpha \wedge \beta )(X_{1},\ldots ,X_{k+l})=\sum _{\sigma \in S(k,k+l)}{\text{sign}}(\sigma )\alpha (X_{\sigma
Exterior_calculus_identities
On products on sums of squares
{\begin{aligned}\left(\sum _{k=1}^{n}a_{k}^{2}\right)\left(\sum _{k=1}^{n}b_{k}^{2}\right)-\left(\sum _{k=1}^{n}a_{k}b_{k}\right)^{2}&=\sum _{i=1}^{n-1}\sum
Lagrange's_identity
Description of flat one-vertex origami
of i ensures that the first wedge sticks out to the left of all the other folded pieces of paper, allowing the final wedge to connect back up to it. An
Kawasaki's_theorem
Statistics concept
{\text{Known}}\wedge \delta \wedge \pi \right)\\={}&\sum _{\text{Free}}\left[P\left({\text{Searched}}\wedge {\text{Free}}\mid {\text{Known}}\wedge \delta \wedge \pi
Bayesian_programming
The history of Sumer spans the late fifth to the third millennium BC in southern Mesopotamia, documenting the world's first transition from Neolithic
History_of_Sumer
Measure of distance between two clusterings related to mutual information
{\displaystyle H(X,Y)\,=\,H(X\wedge Y)} and we also have that d ( X , X ∧ Y ) = H ( X ∧ Y | X ) {\displaystyle d(X,X\wedge Y)\,=\,H(X\wedge Y|X)} coincides with
Variation_of_information
Infinitesimal calculus on functions defined on a geometric algebra
{\partial }{\partial X}}=\partial _{X}=\sum _{i<\dots <j}e^{i}\wedge \cdots \wedge e^{j}(e_{j}\wedge \cdots \wedge e_{i})*\partial _{X}\ .} This equation
Geometric_calculus
Circulation density in a vector field
formal sum, again with function coefficients: a 12 d x ∧ d y + a 13 d x ∧ d z + a 23 d y ∧ d z ; {\displaystyle a_{12}\,dx\wedge dy+a_{13}\,dx\wedge dz+a_{23}\
Curl_(mathematics)
Standard form of Boolean function
(Z_{1}\vee \ldots \vee Z_{n})\wedge (\neg Z_{1}\vee X_{1})\wedge (\neg Z_{1}\vee Y_{1})\wedge \ldots \wedge (\neg Z_{n}\vee X_{n})\wedge (\neg Z_{n}\vee Y_{n})
Conjunctive_normal_form
Conserved physical quantity; rotational analogue of linear momentum
quantity; that is, the total angular momentum of any composite system is the sum of the angular momenta of its constituent parts. For a continuous rigid body
Angular_momentum
-\mathbf {a} )\wedge (\mathbf {c} -\mathbf {a} ){\bigr \|}={\tfrac {1}{2}}{\bigl \|}\mathbf {a} \wedge \mathbf {b} +\mathbf {b} \wedge \mathbf {c} +\mathbf
Area_of_a_triangle
Mathematical concept
{n}{2}}=(-1)^{\frac {n(n-1)}{8}}x_{1}^{*}\wedge \dotsb \wedge x_{n}^{*}\wedge y_{1}^{*}\wedge \dotsb \wedge y_{n}^{*}.} By reordering, one can write ω
Symplectic_vector_space
Math/physics concept
\Theta ^{i}(\mathbf {e} )=d\theta ^{i}(\mathbf {e} )+\sum _{j}\omega _{j}^{i}(\mathbf {e} )\wedge \theta ^{j}(\mathbf {e} ).} Much like the curvature,
Connection_form
Model of hyperbolic geometry
(s-t)-(u\wedge v)\cdot (s\wedge t)\,,} Q = ( u − v ) ⋅ ( u − v ) − ( u ∧ v ) ⋅ ( u ∧ v ) , {\displaystyle Q=(u-v)\cdot (u-v)-(u\wedge v)\cdot (u\wedge v)\
Poincaré_disk_model
Mathematical term
{z}}_{j}\wedge d{\bar {z}}_{J\setminus \lbrace j\rbrace }\\&=d{\bar {z}}_{k+1}\wedge \psi +\mu -d{\bar {z}}_{k+1}\wedge \psi +\sum _{j=1}^{k}\sum _{J}{\frac
Dolbeault_cohomology
Mathematical manifold theory
⋯ ∧ d w q ¯ {\displaystyle f\,dz_{1}\wedge \cdots \wedge dz_{p}\wedge d{\overline {w_{1}}}\wedge \cdots \wedge d{\overline {w_{q}}}} with f a C∞ function
Hodge_theory
Mathematical concept
{\displaystyle d\omega =\sum _{i}E_{i}(e)\otimes d\theta ^{i}\,=\,-{\frac {1}{2}}\sum _{ijk}{c_{jk}}^{i}E_{i}(e)\otimes \theta ^{j}\wedge \theta ^{k}.} The frame
Maurer–Cartan_form
Mathematical condition
{\displaystyle \pi _{*}\left(\sum _{i_{1}<\cdots <i_{k-1}}f_{i}dt\wedge dx^{i}+\sum _{j_{1}<\cdots <j_{k}}g_{j}dx^{j}\right)=\sum _{i_{1}<\cdots <i_{k-1}}\left(\int
Poincaré_lemma
Correlation-type inequality for four functions on a finite distributive lattice
f_{3}(X\vee Y)f_{4}(X\wedge Y)} for all subsets X, Y of the lattice, where f ( X ) = ∑ x ∈ X f ( x ) {\displaystyle f(X)=\sum _{x\in X}f(x)} and X ∨
Ahlswede–Daykin_inequality
Property of operations
(\{0,1\},\wedge )} of the Boolean domain with logical disjunction ∨ {\displaystyle \vee } and logical conjunction ∧ {\displaystyle \wedge } respectively
Idempotence
Board game
spaces earns a plastic wedge which is slotted into the answerer's playing piece. The object of the game is to collect all six wedges from each "category
Trivial_Pursuit
WEDGE SUM
WEDGE SUM
Boy/Male
British, English
From the Ledge Farm
Girl/Female
Anglo Saxon English American
From the ledge meadow.
Boy/Male
Anglo Saxon
From the ledge farm.
Boy/Male
American, Australian, British, English
Meadow on a Ledge; From the Ledge Meadow
Boy/Male
English American
Meadow on a ledge.
Surname or Lastname
English
English : topographic name for someone who lived by a hedge, Middle English hegg(e).
Boy/Male
Muslim
Sword. Sword edge.
Boy/Male
Danish, French, German, Norse, Norwegian, Scandinavian, Swedish
Edge of the Sword; Inspires Fright; Edge; Point
Boy/Male
British, English
Estate on the Ledge
Boy/Male
Indian
Top Edge
Boy/Male
American, British, Chinese, English
Swordsman
Surname or Lastname
English
English : from the Old English personal name Wegga.
Girl/Female
Christian & English(British/American/Australian)
Sea's Edge
Girl/Female
Anglo Saxon English American
From the ledge meadow.
Boy/Male
Arabic, French, Indian, Muslim, Sindhi
Sword Edge
Surname or Lastname
English
English : variant of Hedge.
Boy/Male
Indian, Sanskrit, Telugu
Extreme Corner; Edge
Surname or Lastname
English
English : topographic name, especially in Lancashire and the West Midlands, for someone who lived on or by a hillside or ridge, from Old English ecg ‘edge’. Compare Eck.
Boy/Male
Scandinavian
Strong edge.
Boy/Male
Christian & English(British/American/Australian)
The Edge
WEDGE SUM
WEDGE SUM
WEDGE SUM
WEDGE SUM
WEDGE SUM
WEDGE SUM
WEDGE SUM