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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 4902 | . 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 1395 ◡ccnv 4722 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-in 3204 df-ss 3211 df-br 4087 df-opab 4149 df-cnv 4731 |
| This theorem is referenced by: cnvsng 5220 cores2 5247 suppssof1 6248 2ndval2 6314 2nd1st 6338 cnvf1olem 6384 brtpos2 6412 dftpos4 6424 tpostpos 6425 tposf12 6430 xpcomco 7005 infeq123d 7206 fsumcnv 11988 fprodcnv 12176 ennnfonelemf1 13029 strslfv3 13118 xpsval 13425 grpinvcnv 13641 grplactcnv 13675 eqglact 13802 isunitd 14110 znval 14640 znle2 14656 txswaphmeolem 15034 |
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