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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 4904 | . 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 1397 ◡ccnv 4724 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-in 3206 df-ss 3213 df-br 4089 df-opab 4151 df-cnv 4733 |
| This theorem is referenced by: cnvsng 5222 cores2 5249 suppssof1 6256 2ndval2 6322 2nd1st 6346 cnvf1olem 6392 brtpos2 6420 dftpos4 6432 tpostpos 6433 tposf12 6438 xpcomco 7013 infeq123d 7218 fsumcnv 12019 fprodcnv 12207 ennnfonelemf1 13060 strslfv3 13149 xpsval 13456 grpinvcnv 13672 grplactcnv 13706 eqglact 13833 isunitd 14142 znval 14672 znle2 14688 txswaphmeolem 15071 |
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