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15
Math.TechQA.Club
2018-09-21 02:22:00
253
Views
Linear Algebra Field Definition and its Axioms
Published on
21 Sep 2018 - 2:22
#field-theory
#definition
50
Views
Does $S_n$ refer to an object, or a class?
Published on
26 Mar 2026 - 1:00
#group-theory
#definition
#symmetric-groups
112
Views
In the deduction theorem, what exactly is contained in $\Delta$?
Published on
25 Mar 2026 - 11:11
#logic
#definition
#propositional-calculus
#axioms
1.1k
Views
What does it mean for a formal power series to be "well-defined"?
Published on
25 Mar 2026 - 17:25
#power-series
#definition
#formal-power-series
69
Views
Not sure whether I understand certain adjoint impilcation correctly.
Published on
25 Mar 2026 - 3:18
#category-theory
#definition
#adjoint-functors
453
Views
Why are the laws of sines/cosines "laws" and not "theorems"?
Published on
25 Mar 2026 - 11:14
#trigonometry
#logic
#definition
#math-history
#axioms
1.1k
Views
Definition of Orthogonal Projector onto a subspace $S$ unclear.
Published on
22 Sep 2018 - 15:03
#linear-algebra
#matrices
#definition
384
Views
Hilbert systems and natural deduction systems in terms of "context"
Published on
19 Mar 2026 - 17:06
#logic
#definition
#natural-deduction
#sequent-calculus
#hilbert-calculus
170
Views
Defining real numbers by only one half of Dedekind Cuts
Published on
23 Sep 2018 - 10:58
#definition
#real-numbers
84
Views
Is defining $\mathbb{R}$ as $\{e \mid e^2 \ge 0\}$ good for non-mathematics undergraduates?
Published on
23 Sep 2018 - 15:46
#definition
140
Views
How to define/What is a probability that random sequence of real numbers is convergent?
Published on
23 Sep 2018 - 19:31
#probability
#sequences-and-series
#convergence-divergence
#definition
43
Views
Derived parameter instead of parameter estimation
Published on
26 Mar 2026 - 20:43
#statistics
#reference-request
#definition
#statistical-inference
93
Views
If $A \vdash a$ and $B \vdash b$ then $A \cup B \vdash a$ and $A \cup B \vdash b$? Question about the empty set and axioms.
Published on
23 Feb 2026 - 1:23
#logic
#definition
#propositional-calculus
#axioms
#hilbert-calculus
201
Views
How can we prove soundness property if it's possible for our assumption set to contain false assumptions?
Published on
23 Feb 2026 - 1:23
#logic
#definition
#propositional-calculus
#hilbert-calculus
712
Views
Most general definition of a normal vector to an affine subspace of a Euclidian space
Published on
24 Sep 2018 - 14:56
#linear-algebra
#reference-request
#soft-question
#vectors
#definition
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