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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 5743 | . . 3 ⊢ (𝐴 ⊆ 𝐵 → ◡𝐴 ⊆ ◡𝐵) | |
2 | cnvss 5743 | . . 3 ⊢ (𝐵 ⊆ 𝐴 → ◡𝐵 ⊆ ◡𝐴) | |
3 | 1, 2 | anim12i 614 | . 2 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ 𝐴) → (◡𝐴 ⊆ ◡𝐵 ∧ ◡𝐵 ⊆ ◡𝐴)) |
4 | eqss 3982 | . 2 ⊢ (𝐴 = 𝐵 ↔ (𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ 𝐴)) | |
5 | eqss 3982 | . 2 ⊢ (◡𝐴 = ◡𝐵 ↔ (◡𝐴 ⊆ ◡𝐵 ∧ ◡𝐵 ⊆ ◡𝐴)) | |
6 | 3, 4, 5 | 3imtr4i 294 | 1 ⊢ (𝐴 = 𝐵 → ◡𝐴 = ◡𝐵) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 398 = wceq 1537 ⊆ wss 3936 ◡ccnv 5554 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-in 3943 df-ss 3952 df-br 5067 df-opab 5129 df-cnv 5563 |
This theorem is referenced by: cnveqi 5745 cnveqd 5746 rneq 5806 cnveqb 6053 predeq123 6149 f1eq1 6570 f1ssf1 6646 f1o00 6649 foeqcnvco 7056 funcnvuni 7636 tposfn2 7914 ereq1 8296 infeq3 8944 1arith 16263 vdwmc 16314 vdwnnlem1 16331 ramub2 16350 rami 16351 isps 17812 istsr 17827 isdir 17842 isrim0 19475 psrbag 20144 psrbaglefi 20152 iscn 21843 ishmeo 22367 symgtgp 22714 ustincl 22816 ustdiag 22817 ustinvel 22818 ustexhalf 22819 ustexsym 22824 ust0 22828 isi1f 24275 itg1val 24284 fta1lem 24896 fta1 24897 vieta1lem2 24900 vieta1 24901 sqff1o 25759 istrl 27478 isspth 27505 upgrwlkdvspth 27520 uhgrwkspthlem1 27534 0spth 27905 nlfnval 29658 padct 30455 tocyc01 30760 cycpmconjslem2 30797 indf1ofs 31285 ismbfm 31510 issibf 31591 sitgfval 31599 eulerpartlemelr 31615 eulerpartleme 31621 eulerpartlemo 31623 eulerpartlemt0 31627 eulerpartlemt 31629 eulerpartgbij 31630 eulerpartlemr 31632 eulerpartlemgs2 31638 eulerpartlemn 31639 eulerpart 31640 funen1cnv 32357 iscvm 32506 elmpst 32783 elsymrels2 35804 elsymrels4 35806 symreleq 35809 elrefsymrels2 35820 eleqvrels2 35842 eldisjs 35970 lkrval 36239 ltrncnvnid 37278 cdlemkuu 38046 pw2f1o2val 39656 pwfi2f1o 39716 clcnvlem 40003 rfovcnvf1od 40370 fsovrfovd 40375 issmflem 43024 isrngisom 44187 |
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