List questions from definition

Published on 11 Apr 2026 - 3:54

335

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How are these two definitions of a fibre bundle equivalent?

Published on 09 Apr 2026 - 5:47

877

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a question pertaining to epsilon balls?

Published on 13 Apr 2026 - 1:55

175

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Is the following set of inference rules for quantifiers in ND correct?

Published on 12 Apr 2026 - 7:01

2.5k

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Is there a definition for the"size" of a number?

Published on 12 Apr 2026 - 11:57

55

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restricting a vector field to a leaf

Published on 12 Apr 2026 - 7:04

102

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direct sum is an algebra

Published on 12 Apr 2026 - 4:26

871

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bounded away from zero vs positive

Published on 17 Apr 2026 - 6:06

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What is a real number (also rational, decimal, integer, natural, cardinal, ordinal...)?

Published on 12 Apr 2026 - 19:00

6.6k

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Why is $x^0 = 1$ except when $x = 0$?

Published on 22 Apr 2026 - 3:02

4.1k

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Unital homomorphism

Published on 12 Apr 2026 - 22:29

1k

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Are $x \cdot 0 = 0$, $x \cdot 1 = x$, and $-(-x) = x$ axioms?

Published on 15 Apr 2026 - 19:52

92.2k

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Approximation symbol: Is $\pi \approx 3.14\dots$ equivalent to $\pi \fallingdotseq 3.14\dots$?

Published on 15 Apr 2026 - 16:22

4.5k

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A definition of Conway base-$13$ function

Published on 12 Apr 2026 - 10:27

589

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Definition of a set

Published on 13 Apr 2026 - 6:57

List Question

Inference rules for quantifiers in natural deduction - are all the conditions correct?

How are these two definitions of a fibre bundle equivalent?

a question pertaining to epsilon balls?

Is the following set of inference rules for quantifiers in ND correct?

Is there a definition for the"size" of a number?

restricting a vector field to a leaf

direct sum is an algebra

bounded away from zero vs positive

What is a real number (also rational, decimal, integer, natural, cardinal, ordinal...)?

Why is $x^0 = 1$ except when $x = 0$?

Unital homomorphism

Are $x \cdot 0 = 0$, $x \cdot 1 = x$, and $-(-x) = x$ axioms?

Approximation symbol: Is $\pi \approx 3.14\dots$ equivalent to $\pi \fallingdotseq 3.14\dots$?

A definition of Conway base-$13$ function

Definition of a set

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