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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 5644 | . 2 ⊢ (𝐴 ↾ 𝐶) = (𝐴 ∩ (𝐶 × V)) | |
| 3 | df-res 5644 | . 2 ⊢ (𝐵 ↾ 𝐶) = (𝐵 ∩ (𝐶 × V)) | |
| 4 | 1, 2, 3 | 3eqtr4g 2797 | 1 ⊢ (𝐴 = 𝐵 → (𝐴 ↾ 𝐶) = (𝐵 ↾ 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 Vcvv 3442 ∩ cin 3902 × cxp 5630 ↾ cres 5634 |
| 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-rab 3402 df-in 3910 df-res 5644 |
| This theorem is referenced by: reseq1i 5942 reseq1d 5945 imaeq1 6022 fvtresfn 6952 eqfnun 6991 frrlem1 8238 frrlem13 8250 tfrlem12 8330 pmresg 8820 resixpfo 8886 mapunen 9086 fseqenlem1 9946 axdc3lem2 10373 axdc3lem4 10375 hashf1lem1 14390 lo1eq 15503 rlimeq 15504 symgfixfo 19380 lspextmo 21020 evlseu 22050 mdetunilem3 22570 mdetunilem4 22571 mdetunilem9 22576 lmbr 23214 ptuncnv 23763 iscau 25244 plyexmo 26289 relogf1o 26543 nosupprefixmo 27680 noinfprefixmo 27681 nosupcbv 27682 nosupno 27683 nosupdm 27684 nosupfv 27686 nosupres 27687 nosupbnd1lem1 27688 nosupbnd1lem3 27690 nosupbnd1lem5 27692 nosupbnd2 27696 noinfcbv 27697 noinfno 27698 noinfdm 27699 noinffv 27701 noinfres 27702 noinfbnd1lem1 27703 noinfbnd1lem3 27705 noinfbnd1lem5 27707 noinfbnd2 27711 extvfvv 33710 extvfvcl 33712 eulerpartlemt 34548 eulerpartlemgv 34550 eulerpartlemn 34558 eulerpart 34559 bnj1385 35007 bnj66 35035 bnj1234 35188 bnj1326 35201 bnj1463 35230 iscvm 35472 mbfresfi 37911 sdclem2 37987 isdivrngo 38195 evlselvlem 42938 evlselv 42939 mzpcompact2lem 43102 diophrw 43110 eldioph2lem1 43111 eldioph2lem2 43112 eldioph3 43117 diophin 43123 diophrex 43126 rexrabdioph 43145 2rexfrabdioph 43147 3rexfrabdioph 43148 4rexfrabdioph 43149 6rexfrabdioph 43150 7rexfrabdioph 43151 eldioph4b 43162 pwssplit4 43440 dvnprodlem1 46298 dvnprodlem3 46300 ismea 46803 isome 46846 |
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