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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 5822 | . . 3 ⊢ (𝐴 ⊆ 𝐵 → ◡𝐴 ⊆ ◡𝐵) | |
| 2 | cnvss 5822 | . . 3 ⊢ (𝐵 ⊆ 𝐴 → ◡𝐵 ⊆ ◡𝐴) | |
| 3 | 1, 2 | anim12i 614 | . 2 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ 𝐴) → (◡𝐴 ⊆ ◡𝐵 ∧ ◡𝐵 ⊆ ◡𝐴)) |
| 4 | eqss 3950 | . 2 ⊢ (𝐴 = 𝐵 ↔ (𝐴 ⊆ 𝐵 ∧ 𝐵 ⊆ 𝐴)) | |
| 5 | eqss 3950 | . 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 3902 ◡ccnv 5624 |
| 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 3919 df-br 5100 df-opab 5162 df-cnv 5633 |
| This theorem is referenced by: cnveqi 5824 cnveqd 5825 rneq 5886 cnveqb 6155 predeq123 6261 f1eq1 6726 f1ssf1 6807 f1o00 6810 foeqcnvco 7249 funcnvuni 7877 tposfn2 8193 ereq1 8646 cnvfi 9105 infeq3 9389 1arith 16860 vdwmc 16911 vdwnnlem1 16928 ramub2 16947 rami 16948 isps 18496 istsr 18511 isdir 18526 isrngim 20386 isrim0 20423 psrbag 21878 psrbaglefi 21887 iscn 23184 ishmeo 23708 symgtgp 24055 ustincl 24157 ustdiag 24158 ustinvel 24159 ustexhalf 24160 ustexsym 24165 ust0 24169 isi1f 25636 itg1val 25645 fta1lem 26276 fta1 26277 vieta1lem2 26280 vieta1 26281 sqff1o 27153 istrl 29773 isspth 29800 upgrwlkdvspth 29817 uhgrwkspthlem1 29831 0spth 30206 nlfnval 31961 padct 32800 indf1ofs 32951 tocyc01 33204 cycpmconjslem2 33241 ismbfm 34421 issibf 34503 sitgfval 34511 eulerpartlemelr 34527 eulerpartleme 34533 eulerpartlemo 34535 eulerpartlemt0 34539 eulerpartlemt 34541 eulerpartgbij 34542 eulerpartlemr 34544 eulerpartlemgs2 34550 eulerpartlemn 34551 eulerpart 34552 funen1cnv 35257 iscvm 35466 elmpst 35743 elsymrels2 38851 elsymrels4 38853 symreleq 38856 elrefsymrels2 38867 eleqvrels2 38890 eldisjs 39033 lkrval 39427 ltrncnvnid 40466 cdlemkuu 41234 pw2f1o2val 43359 pwfi2f1o 43416 clcnvlem 43942 rfovcnvf1od 44323 fsovrfovd 44328 issmflem 47048 |
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