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<b_jonas> ` f=bin/w\xc3\xa4lc\xc3\xa5m\xc3\xa4; >"$f" echo $\'/bin/sh\\nwelcome | sed "s/E/\xc3\x84/g;s/O/\xc3\x85/g;s/e/\xc3\xa4/g;s/o/\xc3\xa5/g"\'; chmod a+x "$f"
author HackBot
date Thu, 10 Sep 2015 11:15:33 +0000
parents 74cae6b8f28c
children 00af4aaadf2c
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categorical product is like when you have two category elements A and B then their product is element C iff there are two morphisms p:C->A and q:C->B such that for every element X and morphisms u:X->A and v:X->B there is a morphism w:X->C such that u=wp and v=wq.