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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 4899 | . 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 4719 |
| 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 3203 df-ss 3210 df-br 4084 df-opab 4146 df-cnv 4728 |
| This theorem is referenced by: cnvsng 5217 cores2 5244 suppssof1 6245 2ndval2 6311 2nd1st 6335 cnvf1olem 6381 brtpos2 6408 dftpos4 6420 tpostpos 6421 tposf12 6426 xpcomco 6998 infeq123d 7199 fsumcnv 11969 fprodcnv 12157 ennnfonelemf1 13010 strslfv3 13099 xpsval 13406 grpinvcnv 13622 grplactcnv 13656 eqglact 13783 isunitd 14091 znval 14621 znle2 14637 txswaphmeolem 15015 |
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