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| Mirrors > Home > ILE Home > Th. List > cnveqd | GIF version | ||
| Description: Equality deduction for converse. (Contributed by NM, 6-Dec-2013.) |
| Ref | Expression |
|---|---|
| cnveqd.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| Ref | Expression |
|---|---|
| cnveqd | ⊢ (𝜑 → ◡𝐴 = ◡𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cnveqd.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | cnveq 4931 | . 2 ⊢ (𝐴 = 𝐵 → ◡𝐴 = ◡𝐵) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → ◡𝐴 = ◡𝐵) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 ◡ccnv 4750 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2216 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-in 3219 df-ss 3226 df-br 4112 df-opab 4174 df-cnv 4759 |
| This theorem is referenced by: cnvsng 5250 cores2 5277 suppssof1 6286 2ndval2 6352 2nd1st 6376 cnvf1olem 6422 brtpos2 6484 dftpos4 6496 tpostpos 6497 tposf12 6502 xpcomco 7079 infeq123d 7309 fsumcnv 12127 fprodcnv 12315 ennnfonelemf1 13186 strslfv3 13275 xpsval 13582 grpinvcnv 13798 grplactcnv 13832 eqglact 13959 isunitd 14268 znval 14801 znle2 14817 txswaphmeolem 15202 |
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