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Related theorems Unicode version |
| Description: Structure of a category. |
| Ref | Expression |
|---|---|
| strcat |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-cat 10677 |
. 2
| |
| 2 | stcat 10460 |
. 2
| |
| 3 | 1, 2 | eqsstr 2100 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: relcat 10685 reldcat 10686 relrcat 10687 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 966 ax-gen 967 ax-8 968 ax-10 970 ax-11 971 ax-12 972 ax-13 973 ax-14 974 ax-17 975 ax-4 977 ax-5o 979 ax-6o 982 ax-9o 1129 ax-10o 1146 ax-16 1216 ax-11o 1224 ax-ext 1466 ax-sep 2716 ax-pow 2756 ax-pr 2793 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 985 df-sb 1178 df-eu 1388 df-mo 1389 df-clab 1471 df-cleq 1476 df-clel 1479 df-ne 1594 df-v 1819 df-dif 2058 df-un 2059 df-in 2060 df-ss 2062 df-nul 2290 df-pw 2412 df-sn 2422 df-pr 2423 df-op 2426 df-opab 2680 df-xp 3198 df-cat 10677 |