# Josh

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In house web designer for small tech company. Does some PHP stuff and hates it. Pretty good with Python.

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 Jan4 awarded Notable Question Jan3 comment Prove that all combinators must fulfill A x = x for some x, given that M x = x x and composability of any two combinators I just solved this. Funnily enough, I went this direction when I first attacked the problem and then failed to see it through. Jan3 accepted Prove that all combinators must fulfill A x = x for some x, given that M x = x x and composability of any two combinators Jan2 revised Prove that all combinators must fulfill A x = x for some x, given that M x = x x and composability of any two combinators Fixed grammar Jan2 revised Prove that all combinators must fulfill A x = x for some x, given that M x = x x and composability of any two combinators added 35 characters in body Jan2 comment Prove that all combinators must fulfill A x = x for some x, given that M x = x x and composability of any two combinators Yes, that's the definition of fond. I can't believe I neglected to add that. Jan2 asked Prove that all combinators must fulfill A x = x for some x, given that M x = x x and composability of any two combinators Dec5 comment Is my proof that the medians of a triangle are concurrent valid? Thanks, I thought it was pretty. The limits make sense. I had thought that I might be able to get the 2:1 result. I'll have to look at that more. Dec5 accepted Is my proof that the medians of a triangle are concurrent valid? Dec5 comment Is my proof that the medians of a triangle are concurrent valid? I was not. I was mostly hoping to satisfy myself in proving that they meet in a point. I wanted to make sure that my argument wasn't fallacious. Dec5 comment Is my proof that the medians of a triangle are concurrent valid? Cool. I haven't learned any analysis yet, but have a reasonable grasp of what passes as "calculus" in a university curriculum. If you think that I won't be out of my depth with a small blizzard of analysis, I'd love to hear the explanation. Otherwise, if you want to reformat your comment as an answer, I'll accept it. Dec5 asked Is my proof that the medians of a triangle are concurrent valid? Nov19 accepted Resource for learning straightedge and compass constructions Nov18 asked Resource for learning straightedge and compass constructions Nov16 comment Extremely intuitive geometric proofs for teaching Extremely cool. The perpendicular bisectors part is actually a good example. It took my students a while and a lot of prodding to see why the third bisector would meet at the same point. Nov16 accepted Extremely intuitive geometric proofs for teaching Nov3 comment Extremely intuitive geometric proofs for teaching Hmmm. I personally find most geometric proofs to be pretty intuitive. The problem is that my students often don't understand the reasoning behind proofs that require too many intuitive leaps. Maybe what I'm going for is "simple." Nov2 asked Extremely intuitive geometric proofs for teaching Oct24 accepted Derivation of formula for continues annuities Oct23 asked Derivation of formula for continues annuities