George Shack
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 May 18 awarded Curious Apr 22 awarded Notable Question Oct 19 awarded Popular Question Dec 13 revised Symmetric and reflexive relations on an $n$-element set added 1 characters in body Dec 13 asked Symmetric and reflexive relations on an $n$-element set Dec 6 revised Stuck on simple relations between sets deleted 1 characters in body Dec 6 awarded Commentator Dec 6 awarded Editor Dec 6 revised Stuck on simple relations between sets deleted 2 characters in body Dec 6 asked Stuck on simple relations between sets Dec 5 comment Reverse Polish Notation and numbers $>9$ OK, thank you :) Dec 5 accepted Reverse Polish Notation and numbers $>9$ Dec 5 asked Reverse Polish Notation and numbers $>9$ Nov 23 accepted GCD using quantifiers - where did I make a mistke? Nov 23 comment GCD using quantifiers - where did I make a mistke? Yep, I see it now, it's senseless to assign some true-false value to d here, thank you :) Nov 23 comment GCD using quantifiers - where did I make a mistke? Ooh, I see. Thank you a lot :) Nov 23 comment GCD using quantifiers - where did I make a mistke? Hm... So something like $d=\forall_{k}(...)$? It doesn't look right to me but I never did quantifier-things with an equal sign between so maybe it's right... Is it? Nov 23 comment GCD using quantifiers - where did I make a mistke? Oh, I see. Thank you a lot. But how can I use the quantifiers to show such a statement? I mean: I can't just do $d=$ and write down all the rest so how should one do it? Also, thank you a lot for the disclaimer about d dividing a,b,c - shamefully, I don't remember if I wrote that down or not :) Nov 23 asked GCD using quantifiers - where did I make a mistke? Dec 11 awarded Tumbleweed