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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 4168 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴 ∩ (𝐶 × V)) = (𝐵 ∩ (𝐶 × V))) | |
| 2 | df-res 5664 | . 2 ⊢ (𝐴 ↾ 𝐶) = (𝐴 ∩ (𝐶 × V)) | |
| 3 | df-res 5664 | . 2 ⊢ (𝐵 ↾ 𝐶) = (𝐵 ∩ (𝐶 × V)) | |
| 4 | 1, 2, 3 | 3eqtr4g 2825 | 1 ⊢ (𝐴 = 𝐵 → (𝐴 ↾ 𝐶) = (𝐵 ↾ 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1563 Vcvv 3457 ∩ cin 3906 × cxp 5650 ↾ cres 5654 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-ext 2737 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-ex 1803 df-sb 2094 df-clab 2744 df-cleq 2757 df-clel 2840 df-rab 3418 df-in 3914 df-res 5664 |
| This theorem is referenced by: reseq1i 5965 reseq1d 5968 imaeq1 6048 fvtresfn 6982 eqfnun 7022 frrlem1 8271 frrlem13 8283 tfrlem12 8364 pmresg 8856 resixpfo 8922 mapunen 9122 fseqenlem1 9996 axdc3lem2 10423 axdc3lem4 10425 hashf1lem1 14482 lo1eq 15609 rlimeq 15610 symgfixfo 19500 lspextmo 21146 evlseu 22194 mdetunilem3 22732 mdetunilem4 22733 mdetunilem9 22738 lmbr 23376 ptuncnv 23925 iscau 25396 plyexmo 26435 relogf1o 26689 nosupprefixmo 27822 noinfprefixmo 27823 nosupcbv 27824 nosupno 27825 nosupdm 27826 nosupfv 27828 nosupres 27829 nosupbnd1lem1 27830 nosupbnd1lem3 27832 nosupbnd1lem5 27834 nosupbnd2 27838 noinfcbv 27839 noinfno 27840 noinfdm 27841 noinffv 27843 noinfres 27844 noinfbnd1lem1 27845 noinfbnd1lem3 27847 noinfbnd1lem5 27849 noinfbnd2 27853 extvfvv 33841 extvfvcl 33843 eulerpartlemt 34678 eulerpartlemgv 34680 eulerpartlemn 34688 eulerpart 34689 bnj1385 35137 bnj66 35165 bnj1234 35318 bnj1326 35331 bnj1463 35360 iscvm 35622 mbfresfi 38177 sdclem2 38253 isdivrngo 38461 evlselvlem 43182 evlselv 43183 mzpcompact2lem 43344 diophrw 43352 eldioph2lem1 43353 eldioph2lem2 43354 eldioph3 43359 diophin 43365 diophrex 43368 rexrabdioph 43383 2rexfrabdioph 43385 3rexfrabdioph 43386 4rexfrabdioph 43387 6rexfrabdioph 43388 7rexfrabdioph 43389 eldioph4b 43400 pwssplit4 43678 dvnprodlem1 46518 dvnprodlem3 46520 ismea 47023 isome 47066 |
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