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15
Math.TechQA.Club
2026-04-17 05:55:38
450
Views
Wrong pushforward of vector field definition on wikipedia
Published on
17 Apr 2026 - 5:55
#differential-geometry
#definition
284
Views
Why are some branches of mathematics called 'theory' and others not?
Published on
13 Apr 2026 - 13:41
#terminology
#definition
#math-history
560
Views
Definition of the vector cross product
Published on
16 Apr 2026 - 12:34
#vector-spaces
#definition
#cross-product
993
Views
Why associativity $h \circ (g \circ f) = (h \circ g) \circ f$ is required in composition?
Published on
14 Apr 2026 - 7:15
#category-theory
#definition
#function-and-relation-composition
#associativity
405
Views
Equal Categories
Published on
14 Apr 2026 - 23:53
#category-theory
#definition
#motivation
286
Views
What is the actual definition of a function?
Published on
09 Apr 2026 - 23:07
#functions
#elementary-set-theory
#definition
999
Views
Switching order of quantifiers in definition of convergent sequences
Published on
16 Apr 2026 - 16:34
#real-analysis
#sequences-and-series
#convergence-divergence
#definition
211
Views
Is every field a Krull domain?
Published on
11 Apr 2026 - 4:27
#abstract-algebra
#commutative-algebra
#field-theory
#definition
4.4k
Views
Give a serious explanation of the difference between an equation and a function.
Published on
08 Apr 2026 - 21:20
#algebra-precalculus
#definition
#foundations
15.9k
Views
What is the bar symbol over a complex scalar in the expression $\overline{\lambda}$?
Published on
15 Apr 2026 - 3:04
#linear-algebra
#vector-spaces
#complex-numbers
#notation
#definition
8.9k
Views
Explanation of a joke on abelian groups (grapes).
Published on
11 Apr 2026 - 14:43
#abstract-algebra
#reference-request
#definition
3.1k
Views
Why every definition is an "iff"-type statement?
Published on
12 Apr 2026 - 4:52
#logic
#definition
980
Views
Filters and filter bases in order theory
Published on
13 Apr 2026 - 23:13
#general-topology
#proof-verification
#definition
#order-theory
103
Views
A measure of a group's commutativity
Published on
13 Apr 2026 - 19:54
#group-theory
#terminology
#definition
#abelian-groups
#group-presentation
6.6k
Views
how to define a "directed spanning tree"?
Published on
11 Apr 2026 - 7:58
#graph-theory
#definition
#trees
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