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Phoenix

Apparently, this user prefers to keep an air of mystery about them.

7
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22
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  • France
  • Member for 2 years, 8 months
  • 67 profile views
  • Last seen 7 hours ago

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Top posts (29) All Questions Answers | Votes Newest

3 What is the definition of $\mathbb R^n$? Jul 30 '17
3 Measure of sets on $\mathbb R^{n+m}$ isomorphic to $\mathbb R^n\times \mathbb R^m$ May 20 '18
2 If $A$ has linearly dependent rows or columns then $\det(A)=0$ May 22 '18
2 Existence of a sequence of elements picked arbitrarly Jul 31 '17
2 Tangent series representation Aug 9 '17
2 Define numbers sets (e.g. $\mathbb{N,Z}$ etc.) as being subsets of next one… Mar 11 '17
2 Equality of mappings under ZFC Mar 18 '17
1 How to prove image and preimage properties (ZFC) Mar 19 '17
1 Formal definition of sum over finite index set Jul 24 '17
1 How to prove that $\forall x, x\in A\cup B \Leftrightarrow (x\in A\lor x\in B)$ with ZF axioms? Feb 12 '17
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