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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 5856 | . . 3 ⊢ (𝐴 ⊆ 𝐵 → ◡𝐴 ⊆ ◡𝐵) | |
| 2 | cnvss 5856 | . . 3 ⊢ (𝐵 ⊆ 𝐴 → ◡𝐵 ⊆ ◡𝐴) | |
| 3 | 1, 2 | anim12i 625 | . 2 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ 𝐴) → (◡𝐴 ⊆ ◡𝐵 ∧ ◡𝐵 ⊆ ◡𝐴)) |
| 4 | eqss 3928 | . 2 ⊢ (𝐴 = 𝐵 ↔ (𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ 𝐴)) | |
| 5 | eqss 3928 | . 2 ⊢ (◡𝐴 = ◡𝐵 ↔ (◡𝐴 ⊆ ◡𝐵 ∧ ◡𝐵 ⊆ ◡𝐴)) | |
| 6 | 3, 4, 5 | 3imtr4i 295 | 1 ⊢ (𝐴 = 𝐵 → ◡𝐴 = ◡𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ⊆ wss 3900 ◡ccnv 5654 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-ss 3901 df-br 5107 df-opab 5171 df-cnv 5663 |
| This theorem is used by: cnveqi 5858 cnveqd 5859 rneq 5924 predeq123 6320 f1eq1 6792 f1ssf1 6877 f1o00 6880 foeqcnvco 7328 funcnvuni 7965 tposfn2 8290 ereq1 8750 funen1cnv 9081 cnvfi 9216 infeq3 9497 1arith 17131 vdwmc 17182 vdwnnlem1 17199 ramub2 17218 rami 17219 isps 18768 istsr 18783 isdir 18798 isrngim 20702 isrim0 20740 psrbag 22252 psrbaglefi 22261 iscn 23580 ishmeo 24105 symgtgp 24452 ustincl 24554 ustdiag 24555 ustinvel 24556 ustexhalf 24557 ustexsym 24562 ust0 24566 isi1f 26022 itg1val 26031 fta1lem 26655 fta1 26656 vieta1lem2 26661 vieta1 26662 sqff1o 27536 istrl 30306 isspth 30334 upgrwlkdvspth 30352 uhgrwkspthlem1 30366 0spth 30744 nlfnval 32510 padct 33378 indf1ofs 33500 tocyc01 33746 cycpmconjslem2 33783 ismbfm 34951 issibf 35032 sitgfval 35040 eulerpartlemelr 35056 eulerpartleme 35062 eulerpartlemo 35064 eulerpartlemt0 35068 eulerpartlemt 35070 eulerpartgbij 35071 eulerpartlemr 35073 eulerpartlemgs2 35079 eulerpartlemn 35080 eulerpart 35081 gdlop6fv 35967 iscvm 36190 elmpst 36467 elsymrels2 39760 elsymrels4 39762 symreleq 39765 elrefsymrels2 39776 eleqvrels2 39799 eldisjs 39942 lkrval 40336 ltrncnvnid 41375 cdlemkuu 42143 pw2f1o2val 44237 pwfi2f1o 44289 clcnvlem 44813 rfovcnvf1od 45194 fsovrfovd 45199 issmflem 47940 |
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