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| Description: The elements of a homset are morphisms. JFM CAT1 th. 21. |
| Ref | Expression |
|---|---|
| ehm.1 |
|
| ehm.2 |
|
| ehm.5 |
|
| Ref | Expression |
|---|---|
| ehm |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ehm.1 |
. . . . 5
| |
| 2 | ehm.2 |
. . . . 5
| |
| 3 | eqid 1475 |
. . . . 5
| |
| 4 | eqid 1475 |
. . . . 5
| |
| 5 | ehm.5 |
. . . . 5
| |
| 6 | 1, 2, 3, 4, 5 | ishomd 10669 |
. . . 4
|
| 7 | 6 | biimpa 416 |
. . 3
|
| 8 | 7 | 3simp1d 793 |
. 2
|
| 9 | 8 | ex 373 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: cmphmia 10677 cmphmib 10678 cmpassoh 10680 homgrf 10681 imonclem 10690 idmon 10695 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 961 ax-gen 962 ax-8 963 ax-9 964 ax-10 965 ax-11 966 ax-12 967 ax-13 968 ax-14 969 ax-17 970 ax-4 972 ax-5o 974 ax-6o 977 ax-9o 1122 ax-10o 1139 ax-16 1210 ax-11o 1218 ax-ext 1459 ax-rep 2690 ax-sep 2700 ax-nul 2707 ax-pow 2739 ax-pr 2776 ax-un 2863 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3an 776 df-ex 980 df-sb 1172 df-eu 1382 df-mo 1383 df-clab 1464 df-cleq 1469 df-clel 1472 df-ne 1586 df-ral 1648 df-rex 1649 df-v 1810 df-sbc 1940 df-csb 2000 df-dif 2047 df-un 2048 df-in 2049 df-ss 2051 df-nul 2279 df-if 2360 df-pw 2400 df-sn 2410 df-pr 2411 df-op 2414 df-uni 2501 df-br 2617 df-opab 2664 df-id 2832 df-xp 3181 df-rel 3182 df-cnv 3183 df-co 3184 df-dm 3185 df-rn 3186 df-res 3187 df-ima 3188 df-fun 3189 df-fn 3190 df-f 3191 df-f1 3192 df-fo 3193 df-f1o 3194 df-fv 3195 df-opr 3962 df-oprab 3963 df-alg 10599 df-ded 10619 df-cat 10637 df-hom 10665 |