whytheq
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 Oct 1 awarded Popular Question Aug 22 awarded Notable Question Sep 24 awarded Autobiographer May 16 accepted Is the empty set equal to a set containing a single tuple made up of two empty sets? May 14 comment Is the empty set equal to a set containing a single tuple made up of two empty sets? @vonbrand I really like the empty box visual May 14 comment Is the empty set equal to a set containing a single tuple made up of two empty sets? @vonbrand That's the question? Is a set containing a tuple of two nothings equal to a set of nothing? May 14 comment Is the empty set equal to a set containing a single tuple made up of two empty sets? +1 for the section "sitting on" - why isn't it an empty box sitting next to another empty box? May 14 asked Is the empty set equal to a set containing a single tuple made up of two empty sets? Feb 20 awarded Popular Question May 18 comment Right-angled isosceles triangles could be a little bit too much for my current level Graeme: nice to have your comment/reference included in this post in case it is viewed by more knowledgeable folks in the future May 18 comment Right-angled isosceles triangles ...had a feeling that might be the case - thanks again for help May 18 comment Right-angled isosceles triangles +1 very pretty indeed May 18 comment Right-angled isosceles triangles +1 thanks for making this clearer May 18 comment Right-angled isosceles triangles 30-60-90 CANNOT be isosceles ... I knew this as soon as I read that ridiculous post but I could not prove it in a rigorous manner - hence my question on stackexchange. I just thought you might find that answer funny.(I understand your proof and i like it) May 18 awarded Commentator May 18 comment Right-angled isosceles triangles Not sure about the section of your answer that says "so each will be 90∘". The OP seems obvious but giving an answer that rigorously proves the point isn't always easy ...check out the answer of lab_bhattacharjee. May 18 comment Right-angled isosceles triangles +1 thanks: here is something for you to have a chuckle about LOOK AT BEST ANSWER HERE May 18 asked Right-angled isosceles triangles Apr 17 comment Any obvious simplification of $\frac{\sin x}{\sin y}$ @GeorgeV.Williams ...how does he know that each of those answers is the simplest form? Apr 17 revised Any obvious simplification of $\frac{\sin x}{\sin y}$ added 39 characters in body