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Mar
26
revised Deterministic finite automata (DFA) (have odd length or end with aaa)
added 346 characters in body
Mar
4
revised How to prove $\forall x,y\in\mathbb{R}: x^2+y^2 = (x+y)^2 \Leftrightarrow x=0\lor y=0?$
edited tags
Feb
22
revised $\mathbb{Z}$ is a vector space over $\mathbb{Q}$
added 43 characters in body
Feb
21
revised $\mathbb{Z}$ is a vector space over $\mathbb{Q}$
added 63 characters in body
Feb
20
revised Why are matrices indexed by row first?
added 490 characters in body
Feb
20
revised Why are matrices indexed by row first?
deleted 1 character in body
Feb
16
revised Can any uncountable dimensional real vector space be made into a Banach space?
shortened the title
Feb
6
revised Is $0$ a natural number?
added 50 characters in body
Feb
6
revised Is $0$ a natural number?
style
Feb
6
revised Is $0$ a natural number?
deleted 88 characters in body
Feb
6
revised Is $0$ a natural number?
deleted 1 character in body
Jan
26
revised Are the polynomial functions on $S^1$ dense in $C(S^1,ℂ)$?
rolled back to a previous revision
Dec
18
revised If $u$ is a unit in $S$, then $u$ is a unit in $R$
deleted 2 characters in body
Dec
14
revised Calculate $\:\lim_\limits{ \Large_{z \to c}}\:\:{\frac{z^n - c^n}{z-c}} ~~ c,z \in \mathbb{C}\:$ without L'Hopital's rule
corrected the problem statement according to the edit
Dec
11
revised What does the theory of the empty set look like?
added 143 characters in body
Nov
21
revised Why is the union of two closed sets again closed in the Scott topology?
added 63 characters in body
Nov
21
revised Why is the union of two closed sets again closed in the Scott topology?
added 63 characters in body
Nov
7
revised Group actions and quotient groups
deleted 1 character in body
Nov
7
revised Group actions and quotient groups
added 65 characters in body
Nov
7
revised Is there a name for a monoid with a distinguished absorbing element?
deleted 181 characters in body