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| Description: Equality theorem for converse. |
| Ref | Expression |
|---|---|
| cnveq |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cnvss 3291 |
. . 3
| |
| 2 | cnvss 3291 |
. . 3
| |
| 3 | 1, 2 | anim12i 333 |
. 2
|
| 4 | eqss 2077 |
. 2
| |
| 5 | eqss 2077 |
. 2
| |
| 6 | 3, 4, 5 | 3imtr4 219 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: rneq 3339 xp0 3465 cnvcnv 3486 cores2 3507 co01 3509 coi2 3511 funcnvuni 3564 f1eq1 3660 f1o00 3714 tz7.48-2 3957 abianfp 3962 2ndval2 4090 ereq 4267 xpcomen 4439 sbthlem8 4454 zorn2lem4 4791 seq1val 6312 iscn 7758 cnconst 7780 isps 8645 dflog2 8752 dfrelog 8756 cnvadj 9816 ishomeo 10517 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 962 ax-gen 963 ax-8 964 ax-10 966 ax-11 967 ax-12 968 ax-13 969 ax-14 970 ax-17 971 ax-4 973 ax-5o 975 ax-6o 978 ax-9o 1123 ax-10o 1140 ax-16 1210 ax-11o 1218 ax-ext 1459 ax-sep 2703 ax-pow 2742 ax-pr 2779 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 981 df-sb 1172 df-eu 1382 df-mo 1383 df-clab 1464 df-cleq 1469 df-clel 1472 df-ne 1587 df-v 1812 df-dif 2049 df-un 2050 df-in 2051 df-ss 2053 df-nul 2281 df-pw 2402 df-sn 2412 df-pr 2413 df-op 2416 df-br 2620 df-opab 2667 df-cnv 3186 |