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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 5862 | . . 3 ⊢ (𝐴 ⊆ 𝐵 → ◡𝐴 ⊆ ◡𝐵) | |
| 2 | cnvss 5862 | . . 3 ⊢ (𝐵 ⊆ 𝐴 → ◡𝐵 ⊆ ◡𝐴) | |
| 3 | 1, 2 | anim12i 624 | . 2 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ 𝐴) → (◡𝐴 ⊆ ◡𝐵 ∧ ◡𝐵 ⊆ ◡𝐴)) |
| 4 | eqss 3960 | . 2 ⊢ (𝐴 = 𝐵 ↔ (𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ 𝐴)) | |
| 5 | eqss 3960 | . 2 ⊢ (◡𝐴 = ◡𝐵 ↔ (◡𝐴 ⊆ ◡𝐵 ∧ ◡𝐵 ⊆ ◡𝐴)) | |
| 6 | 3, 4, 5 | 3imtr4i 295 | 1 ⊢ (𝐴 = 𝐵 → ◡𝐴 = ◡𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 = wceq 1568 ⊆ wss 3913 ◡ccnv 5664 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2152 ax-9 2160 ax-ext 2742 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-ex 1808 df-sb 2099 df-clab 2749 df-cleq 2762 df-clel 2845 df-ss 3930 df-br 5115 df-opab 5179 df-cnv 5673 |
| This theorem is referenced by: cnveqi 5864 cnveqd 5865 rneq 5930 cnveqb 6199 predeq123 6307 f1eq1 6773 f1ssf1 6857 f1o00 6860 foeqcnvco 7302 funcnvuni 7932 tposfn2 8247 ereq1 8705 cnvfi 9163 infeq3 9444 1arith 16990 vdwmc 17041 vdwnnlem1 17058 ramub2 17077 rami 17078 isps 18627 istsr 18642 isdir 18657 isrngim 20530 isrim0 20567 psrbag 22050 psrbaglefi 22059 iscn 23375 ishmeo 23899 symgtgp 24246 ustincl 24348 ustdiag 24349 ustinvel 24350 ustexhalf 24351 ustexsym 24356 ust0 24360 isi1f 25816 itg1val 25825 fta1lem 26451 fta1 26452 vieta1lem2 26455 vieta1 26456 sqff1o 27326 istrl 30014 isspth 30041 upgrwlkdvspth 30058 uhgrwkspthlem1 30072 0spth 30447 nlfnval 32203 padct 33033 indf1ofs 33156 tocyc01 33408 cycpmconjslem2 33445 ismbfm 34611 issibf 34693 sitgfval 34701 eulerpartlemelr 34717 eulerpartleme 34723 eulerpartlemo 34725 eulerpartlemt0 34729 eulerpartlemt 34731 eulerpartgbij 34732 eulerpartlemr 34734 eulerpartlemgs2 34740 eulerpartlemn 34741 eulerpart 34742 funen1cnv 35445 iscvm 35709 elmpst 35986 elsymrels2 39236 elsymrels4 39238 symreleq 39241 elrefsymrels2 39252 eleqvrels2 39275 eldisjs 39418 lkrval 39812 ltrncnvnid 40851 cdlemkuu 41619 pw2f1o2val 43718 pwfi2f1o 43775 clcnvlem 44301 rfovcnvf1od 44682 fsovrfovd 44687 issmflem 47393 |
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