| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 4952 | . 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 1402 ◡ccnv 4771 |
| 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 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This theorem depends on definitions: df-bi 117 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-in 3226 df-ss 3233 df-br 4129 df-opab 4191 df-cnv 4780 |
| This theorem is referenced by: cnvsng 5271 cores2 5298 f1o3d 6291 suppssof1 6313 2ndval2 6383 2nd1st 6407 cnvf1olem 6453 brtpos2 6515 dftpos4 6527 tpostpos 6528 tposf12 6533 xpcomco 7117 infeq123d 7349 fsumcnv 12185 fprodcnv 12373 ennnfonelemf1 13290 strslfv3 13379 grpinvcnv 13853 grplactcnv 13887 eqglact 14008 xpsval 14181 isunitd 14389 znval 14946 znle2 14962 txswaphmeolem 15347 |
| Copyright terms: Public domain | W3C validator |