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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 4113 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴 ∩ (𝐶 × V)) = (𝐵 ∩ (𝐶 × V))) | |
| 2 | df-res 5668 | . 2 ⊢ (𝐴 ↾ 𝐶) = (𝐴 ∩ (𝐶 × V)) | |
| 3 | df-res 5668 | . 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 |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 Vcvv 3454 ∩ cin 4092 × cxp 5654 ↾ cres 5658 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-rab 3417 df-in 4094 df-res 5668 |
| This theorem is used by: reseq1i 5978 reseq1d 5981 imaeq1 6060 fvtresfn 7022 eqfnun 7062 frrlem1 8335 frrlem13 8347 tfrlem12 8428 pmresg 8929 resixpfo 8995 mapunen 9196 fseqenlem1 10133 axdc3lem2 10559 axdc3lem4 10561 hashf1lem1 14630 lo1eq 15767 rlimeq 15768 symgfixfo 19686 lspextmo 21364 evlseu 22425 mdetunilem3 22962 mdetunilem4 22963 mdetunilem9 22968 lmbr 23609 ptuncnv 24159 iscau 25630 plyexmo 26669 relogf1o 26927 nosupprefixmo 28090 noinfprefixmo 28091 nosupcbv 28092 nosupno 28093 nosupdm 28094 nosupfv 28096 nosupres 28097 nosupbnd1lem1 28098 nosupbnd1lem3 28100 nosupbnd1lem5 28102 nosupbnd2 28106 noinfcbv 28107 noinfno 28108 noinfdm 28109 noinffv 28111 noinfres 28112 noinfbnd1lem1 28113 noinfbnd1lem3 28115 noinfbnd1lem5 28117 noinfbnd2 28121 extvfvv 34249 extvfvcl 34251 eulerpartlemt 35086 eulerpartlemgv 35088 eulerpartlemn 35096 eulerpart 35097 bnj1385 35545 bnj66 35573 bnj1234 35726 bnj1326 35739 bnj1463 35768 gdlop4fv 35979 iscvm 36204 mbfresfi 38789 sdclem2 38879 isdivrngo 39087 evlselvlem 43820 evlselv 43821 mzpcompact2lem 43966 diophrw 43974 eldioph2lem1 43975 eldioph2lem2 43976 eldioph3 43981 diophin 43987 diophrex 43990 rexrabdioph 44005 2rexfrabdioph 44007 3rexfrabdioph 44008 4rexfrabdioph 44009 6rexfrabdioph 44010 7rexfrabdioph 44011 eldioph4b 44022 pwssplit4 44295 dvnprodlem1 47171 dvnprodlem3 47173 ismea 47676 isome 47719 tmachlem-agreeself 48161 |
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