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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 4153 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴 ∩ (𝐶 × V)) = (𝐵 ∩ (𝐶 × V))) | |
| 2 | df-res 5643 | . 2 ⊢ (𝐴 ↾ 𝐶) = (𝐴 ∩ (𝐶 × V)) | |
| 3 | df-res 5643 | . 2 ⊢ (𝐵 ↾ 𝐶) = (𝐵 ∩ (𝐶 × V)) | |
| 4 | 1, 2, 3 | 3eqtr4g 2796 | 1 ⊢ (𝐴 = 𝐵 → (𝐴 ↾ 𝐶) = (𝐵 ↾ 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 Vcvv 3429 ∩ cin 3888 × cxp 5629 ↾ cres 5633 |
| 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 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1782 df-sb 2069 df-clab 2715 df-cleq 2728 df-clel 2811 df-rab 3390 df-in 3896 df-res 5643 |
| This theorem is referenced by: reseq1i 5940 reseq1d 5943 imaeq1 6020 fvtresfn 6950 eqfnun 6989 frrlem1 8236 frrlem13 8248 tfrlem12 8328 pmresg 8818 resixpfo 8884 mapunen 9084 fseqenlem1 9946 axdc3lem2 10373 axdc3lem4 10375 hashf1lem1 14417 lo1eq 15530 rlimeq 15531 symgfixfo 19414 lspextmo 21051 evlseu 22061 mdetunilem3 22579 mdetunilem4 22580 mdetunilem9 22585 lmbr 23223 ptuncnv 23772 iscau 25243 plyexmo 26279 relogf1o 26530 nosupprefixmo 27664 noinfprefixmo 27665 nosupcbv 27666 nosupno 27667 nosupdm 27668 nosupfv 27670 nosupres 27671 nosupbnd1lem1 27672 nosupbnd1lem3 27674 nosupbnd1lem5 27676 nosupbnd2 27680 noinfcbv 27681 noinfno 27682 noinfdm 27683 noinffv 27685 noinfres 27686 noinfbnd1lem1 27687 noinfbnd1lem3 27689 noinfbnd1lem5 27691 noinfbnd2 27695 extvfvv 33678 extvfvcl 33680 eulerpartlemt 34515 eulerpartlemgv 34517 eulerpartlemn 34525 eulerpart 34526 bnj1385 34974 bnj66 35002 bnj1234 35155 bnj1326 35168 bnj1463 35197 iscvm 35441 mbfresfi 37987 sdclem2 38063 isdivrngo 38271 evlselvlem 43019 evlselv 43020 mzpcompact2lem 43183 diophrw 43191 eldioph2lem1 43192 eldioph2lem2 43193 eldioph3 43198 diophin 43204 diophrex 43207 rexrabdioph 43222 2rexfrabdioph 43224 3rexfrabdioph 43225 4rexfrabdioph 43226 6rexfrabdioph 43227 7rexfrabdioph 43228 eldioph4b 43239 pwssplit4 43517 dvnprodlem1 46374 dvnprodlem3 46376 ismea 46879 isome 46922 |
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