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| Mirrors > Home > MPE Home > Th. List > cnveq | Structured version Visualization version GIF version | ||
| Description: Equality theorem for converse relation. (Contributed by NM, 13-Aug-1995.) |
| Ref | Expression |
|---|---|
| cnveq | ⊢ (𝐴 = 𝐵 → ◡𝐴 = ◡𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cnvss 5820 | . . 3 ⊢ (𝐴 ⊆ 𝐵 → ◡𝐴 ⊆ ◡𝐵) | |
| 2 | cnvss 5820 | . . 3 ⊢ (𝐵 ⊆ 𝐴 → ◡𝐵 ⊆ ◡𝐴) | |
| 3 | 1, 2 | anim12i 614 | . 2 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ 𝐴) → (◡𝐴 ⊆ ◡𝐵 ∧ ◡𝐵 ⊆ ◡𝐴)) |
| 4 | eqss 3948 | . 2 ⊢ (𝐴 = 𝐵 ↔ (𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ 𝐴)) | |
| 5 | eqss 3948 | . 2 ⊢ (◡𝐴 = ◡𝐵 ↔ (◡𝐴 ⊆ ◡𝐵 ∧ ◡𝐵 ⊆ ◡𝐴)) | |
| 6 | 3, 4, 5 | 3imtr4i 292 | 1 ⊢ (𝐴 = 𝐵 → ◡𝐴 = ◡𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 ⊆ wss 3900 ◡ccnv 5622 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2707 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1782 df-sb 2069 df-clab 2714 df-cleq 2727 df-clel 2810 df-ss 3917 df-br 5098 df-opab 5160 df-cnv 5631 |
| This theorem is referenced by: cnveqi 5822 cnveqd 5823 rneq 5884 cnveqb 6153 predeq123 6259 f1eq1 6724 f1ssf1 6805 f1o00 6808 foeqcnvco 7246 funcnvuni 7874 tposfn2 8190 ereq1 8643 cnvfi 9102 infeq3 9386 1arith 16857 vdwmc 16908 vdwnnlem1 16925 ramub2 16944 rami 16945 isps 18493 istsr 18508 isdir 18523 isrngim 20383 isrim0 20420 psrbag 21875 psrbaglefi 21884 iscn 23181 ishmeo 23705 symgtgp 24052 ustincl 24154 ustdiag 24155 ustinvel 24156 ustexhalf 24157 ustexsym 24162 ust0 24166 isi1f 25633 itg1val 25642 fta1lem 26273 fta1 26274 vieta1lem2 26277 vieta1 26278 sqff1o 27150 istrl 29749 isspth 29776 upgrwlkdvspth 29793 uhgrwkspthlem1 29807 0spth 30182 nlfnval 31937 padct 32776 indf1ofs 32927 tocyc01 33179 cycpmconjslem2 33216 ismbfm 34387 issibf 34469 sitgfval 34477 eulerpartlemelr 34493 eulerpartleme 34499 eulerpartlemo 34501 eulerpartlemt0 34505 eulerpartlemt 34507 eulerpartgbij 34508 eulerpartlemr 34510 eulerpartlemgs2 34516 eulerpartlemn 34517 eulerpart 34518 funen1cnv 35223 iscvm 35432 elmpst 35709 elsymrels2 38807 elsymrels4 38809 symreleq 38812 elrefsymrels2 38823 eleqvrels2 38846 eldisjs 38989 lkrval 39383 ltrncnvnid 40422 cdlemkuu 41190 pw2f1o2val 43318 pwfi2f1o 43375 clcnvlem 43901 rfovcnvf1od 44282 fsovrfovd 44287 issmflem 47008 |
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