Crusader 8 (princelypublictimeline)'s status on Thursday, 08-Mar-12 21:02:19 UTC
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@yuri in the same way I prove a^2+b^2=c^2, spacially with congruency and without numbers. Like they had to do it back in the day, when that theorom (can't spell the name right now so not trying) was first being toyed with.
