6 Commits

Author	SHA1	Message	Date
krasimir	415375f35c	functors	2010-02-22 14:40:28 +00:00
krasimir	34a8b768eb	the oposites of two equal arrows are equal arrows	2010-02-22 14:38:13 +00:00
krasimir	25adc81550	two theorems every iso is mono and every iso is epi	2010-02-20 16:37:23 +00:00
krasimir	8ca24fcad6	some more definitions in category theory	2010-02-20 16:33:40 +00:00
krasimir	62781ca519	more category theory -> morphisms, initial and terminal objects	2010-02-15 10:35:24 +00:00
krasimir	2702b64722	basic category theory expressed in GF. Note: works only with my development version of GF. It will be pushed in darcs soon	2010-02-14 10:20:08 +00:00