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Rob Arthan

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461 reputation
17
bio website lemma-one.demon.co.uk/Arthan/…
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visits member for 1 year, 4 months
seen May 19 at 18:04
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461 reputation
 bio website lemma-one.demon.co.uk/Arthan/… visits member for 1 year, 4 months
17 badges
 location seen May 19 at 18:04
summary answers questions tags badges favorites bounties reputation activity

17 Answers

newest activity votes
6
composition of covering maps
5
Prove that every commutative infinite rng $R$ has an infinite subrng $S$ s.t $S\neq R$
3
A Reduced (Simplicial) Homology Question
3
The way to figure out whether the multi-variable polynomial has roots.
3
What is the minimal axiomatization of a set of structures?
2
How to show that the property of being algebraically closed is reflected by elementary extensions?
2
(Logic) Formally writing a rational number in logic
2
Aronszajn's criterion for euclidean space, again
2
What can $\operatorname{Hom}\left(\prod_i M_i, N\right)$ look like?
2
How to formulate a theorem about bijections between several sets
1
PA with successor not being a function
1
Is it appropriate to do alpha reduction before substitution?
0
Good book for introduction to Tarski-Grothendieck set theory?
0
Want to show Quantifier elimination and completeness of this set of axioms…
0
Smallest Subfield Generated by a set
0
non-homomorphic algebras
0
A basic question about integration
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