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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 5825 | . . 3 ⊢ (𝐴 ⊆ 𝐵 → ◡𝐴 ⊆ ◡𝐵) | |
| 2 | cnvss 5825 | . . 3 ⊢ (𝐵 ⊆ 𝐴 → ◡𝐵 ⊆ ◡𝐴) | |
| 3 | 1, 2 | anim12i 614 | . 2 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ 𝐴) → (◡𝐴 ⊆ ◡𝐵 ∧ ◡𝐵 ⊆ ◡𝐴)) |
| 4 | eqss 3938 | . 2 ⊢ (𝐴 = 𝐵 ↔ (𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ 𝐴)) | |
| 5 | eqss 3938 | . 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 3890 ◡ccnv 5627 |
| 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 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-ss 3907 df-br 5087 df-opab 5149 df-cnv 5636 |
| This theorem is referenced by: cnveqi 5827 cnveqd 5828 rneq 5889 cnveqb 6158 predeq123 6264 f1eq1 6729 f1ssf1 6810 f1o00 6813 foeqcnvco 7252 funcnvuni 7880 tposfn2 8195 ereq1 8648 cnvfi 9107 infeq3 9391 1arith 16895 vdwmc 16946 vdwnnlem1 16963 ramub2 16982 rami 16983 isps 18531 istsr 18546 isdir 18561 isrngim 20422 isrim0 20459 psrbag 21913 psrbaglefi 21922 iscn 23216 ishmeo 23740 symgtgp 24087 ustincl 24189 ustdiag 24190 ustinvel 24191 ustexhalf 24192 ustexsym 24197 ust0 24201 isi1f 25657 itg1val 25666 fta1lem 26290 fta1 26291 vieta1lem2 26294 vieta1 26295 sqff1o 27165 istrl 29784 isspth 29811 upgrwlkdvspth 29828 uhgrwkspthlem1 29842 0spth 30217 nlfnval 31973 padct 32812 indf1ofs 32947 tocyc01 33200 cycpmconjslem2 33237 ismbfm 34417 issibf 34499 sitgfval 34507 eulerpartlemelr 34523 eulerpartleme 34529 eulerpartlemo 34531 eulerpartlemt0 34535 eulerpartlemt 34537 eulerpartgbij 34538 eulerpartlemr 34540 eulerpartlemgs2 34546 eulerpartlemn 34547 eulerpart 34548 funen1cnv 35253 iscvm 35463 elmpst 35740 elsymrels2 38980 elsymrels4 38982 symreleq 38985 elrefsymrels2 38996 eleqvrels2 39019 eldisjs 39162 lkrval 39556 ltrncnvnid 40595 cdlemkuu 41363 pw2f1o2val 43493 pwfi2f1o 43550 clcnvlem 44076 rfovcnvf1od 44457 fsovrfovd 44462 issmflem 47181 |
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