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| Mirrors > Home > MPE Home > Th. List > reseq1 | Structured version Visualization version GIF version | ||
| Description: Equality theorem for restrictions. (Contributed by NM, 7-Aug-1994.) |
| Ref | Expression |
|---|---|
| reseq1 | ⊢ (𝐴 = 𝐵 → (𝐴 ↾ 𝐶) = (𝐵 ↾ 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ineq1 4149 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴 ∩ (𝐶 × V)) = (𝐵 ∩ (𝐶 × V))) | |
| 2 | df-res 5637 | . 2 ⊢ (𝐴 ↾ 𝐶) = (𝐴 ∩ (𝐶 × V)) | |
| 3 | df-res 5637 | . 2 ⊢ (𝐵 ↾ 𝐶) = (𝐵 ∩ (𝐶 × V)) | |
| 4 | 1, 2, 3 | 3eqtr4g 2800 | 1 ⊢ (𝐴 = 𝐵 → (𝐴 ↾ 𝐶) = (𝐵 ↾ 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1547 Vcvv 3432 ∩ cin 3889 × cxp 5623 ↾ cres 5627 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-ext 2712 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-ex 1787 df-sb 2074 df-clab 2719 df-cleq 2732 df-clel 2815 df-rab 3393 df-in 3897 df-res 5637 |
| This theorem is referenced by: reseq1i 5934 reseq1d 5937 imaeq1 6014 fvtresfn 6945 eqfnun 6985 frrlem1 8233 frrlem13 8245 tfrlem12 8325 pmresg 8815 resixpfo 8881 mapunen 9081 fseqenlem1 9944 axdc3lem2 10371 axdc3lem4 10373 hashf1lem1 14415 lo1eq 15528 rlimeq 15529 symgfixfo 19412 lspextmo 21053 evlseu 22066 mdetunilem3 22604 mdetunilem4 22605 mdetunilem9 22610 lmbr 23248 ptuncnv 23797 iscau 25268 plyexmo 26304 relogf1o 26555 nosupprefixmo 27689 noinfprefixmo 27690 nosupcbv 27691 nosupno 27692 nosupdm 27693 nosupfv 27695 nosupres 27696 nosupbnd1lem1 27697 nosupbnd1lem3 27699 nosupbnd1lem5 27701 nosupbnd2 27705 noinfcbv 27706 noinfno 27707 noinfdm 27708 noinffv 27710 noinfres 27711 noinfbnd1lem1 27712 noinfbnd1lem3 27714 noinfbnd1lem5 27716 noinfbnd2 27720 extvfvv 33725 extvfvcl 33727 eulerpartlemt 34562 eulerpartlemgv 34564 eulerpartlemn 34572 eulerpart 34573 bnj1385 35021 bnj66 35049 bnj1234 35202 bnj1326 35215 bnj1463 35244 iscvm 35494 mbfresfi 38040 sdclem2 38116 isdivrngo 38324 evlselvlem 43045 evlselv 43046 mzpcompact2lem 43207 diophrw 43215 eldioph2lem1 43216 eldioph2lem2 43217 eldioph3 43222 diophin 43228 diophrex 43231 rexrabdioph 43246 2rexfrabdioph 43248 3rexfrabdioph 43249 4rexfrabdioph 43250 6rexfrabdioph 43251 7rexfrabdioph 43252 eldioph4b 43263 pwssplit4 43541 dvnprodlem1 46396 dvnprodlem3 46398 ismea 46901 isome 46944 |
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