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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 4167 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴 ∩ (𝐶 × V)) = (𝐵 ∩ (𝐶 × V))) | |
| 2 | df-res 5675 | . 2 ⊢ (𝐴 ↾ 𝐶) = (𝐴 ∩ (𝐶 × V)) | |
| 3 | df-res 5675 | . 2 ⊢ (𝐵 ↾ 𝐶) = (𝐵 ∩ (𝐶 × V)) | |
| 4 | 1, 2, 3 | 3eqtr4g 2823 | 1 ⊢ (𝐴 = 𝐵 → (𝐴 ↾ 𝐶) = (𝐵 ↾ 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1570 Vcvv 3455 ∩ cin 3905 × cxp 5661 ↾ cres 5665 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-ext 2735 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-ex 1810 df-sb 2097 df-clab 2742 df-cleq 2755 df-clel 2838 df-rab 3417 df-in 3913 df-res 5675 |
| This theorem is referenced by: reseq1i 5976 reseq1d 5979 imaeq1 6059 fvtresfn 6994 eqfnun 7034 frrlem1 8284 frrlem13 8296 tfrlem12 8377 pmresg 8869 resixpfo 8935 mapunen 9135 fseqenlem1 10009 axdc3lem2 10436 axdc3lem4 10438 hashf1lem1 14494 lo1eq 15621 rlimeq 15622 symgfixfo 19510 lspextmo 21158 evlseu 22215 mdetunilem3 22752 mdetunilem4 22753 mdetunilem9 22758 lmbr 23396 ptuncnv 23945 iscau 25416 plyexmo 26455 relogf1o 26709 nosupprefixmo 27842 noinfprefixmo 27843 nosupcbv 27844 nosupno 27845 nosupdm 27846 nosupfv 27848 nosupres 27849 nosupbnd1lem1 27850 nosupbnd1lem3 27852 nosupbnd1lem5 27854 nosupbnd2 27858 noinfcbv 27859 noinfno 27860 noinfdm 27861 noinffv 27863 noinfres 27864 noinfbnd1lem1 27865 noinfbnd1lem3 27867 noinfbnd1lem5 27869 noinfbnd2 27873 extvfvv 33902 extvfvcl 33904 eulerpartlemt 34739 eulerpartlemgv 34741 eulerpartlemn 34749 eulerpart 34750 bnj1385 35198 bnj66 35226 bnj1234 35379 bnj1326 35392 bnj1463 35421 iscvm 35729 mbfresfi 38295 sdclem2 38371 isdivrngo 38579 evlselvlem 43300 evlselv 43301 mzpcompact2lem 43462 diophrw 43470 eldioph2lem1 43471 eldioph2lem2 43472 eldioph3 43477 diophin 43483 diophrex 43486 rexrabdioph 43501 2rexfrabdioph 43503 3rexfrabdioph 43504 4rexfrabdioph 43505 6rexfrabdioph 43506 7rexfrabdioph 43507 eldioph4b 43518 pwssplit4 43796 dvnprodlem1 46640 dvnprodlem3 46642 ismea 47145 isome 47188 |
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