27 Aug
2001
27 Aug
'01
11:28 p.m.
While the topic of topos subobject classifier is current, how far back can the historical and conceptual origins of the use of "$\Omega$" as the symbol denoting such be traced? Regards, Keith Harbaugh 30-Aug-2001 07:15:05 -0300,1069;000000000000-0000001f