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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 4131 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴 ∩ (𝐶 × V)) = (𝐵 ∩ (𝐶 × V))) | |
2 | df-res 5531 | . 2 ⊢ (𝐴 ↾ 𝐶) = (𝐴 ∩ (𝐶 × V)) | |
3 | df-res 5531 | . 2 ⊢ (𝐵 ↾ 𝐶) = (𝐵 ∩ (𝐶 × V)) | |
4 | 1, 2, 3 | 3eqtr4g 2858 | 1 ⊢ (𝐴 = 𝐵 → (𝐴 ↾ 𝐶) = (𝐵 ↾ 𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1538 Vcvv 3441 ∩ cin 3880 × cxp 5517 ↾ cres 5521 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-ext 2770 |
This theorem depends on definitions: df-bi 210 df-an 400 df-ex 1782 df-sb 2070 df-clab 2777 df-cleq 2791 df-clel 2870 df-rab 3115 df-in 3888 df-res 5531 |
This theorem is referenced by: reseq1i 5814 reseq1d 5817 imaeq1 5891 fvtresfn 6747 wfrlem1 7937 wfrlem3a 7940 wfrlem15 7952 tfrlem12 8008 pmresg 8417 resixpfo 8483 mapunen 8670 fseqenlem1 9435 axdc3lem2 9862 axdc3lem4 9864 axdc 9932 hashf1lem1 13809 lo1eq 14917 rlimeq 14918 symgfixfo 18559 lspextmo 19821 evlseu 20755 mdetunilem3 21219 mdetunilem4 21220 mdetunilem9 21225 lmbr 21863 ptuncnv 22412 iscau 23880 plyexmo 24909 relogf1o 25158 eulerpartlemt 31739 eulerpartlemgv 31741 eulerpartlemn 31749 eulerpart 31750 bnj1385 32214 bnj66 32242 bnj1234 32395 bnj1326 32408 bnj1463 32437 iscvm 32619 trpredlem1 33179 trpredtr 33182 trpredmintr 33183 frrlem1 33236 frrlem13 33248 noprefixmo 33315 nosupno 33316 nosupdm 33317 nosupfv 33319 nosupres 33320 nosupbnd1lem1 33321 nosupbnd1lem3 33323 nosupbnd1lem5 33325 nosupbnd2 33329 mbfresfi 35103 eqfnun 35160 sdclem2 35180 isdivrngo 35388 mzpcompact2lem 39692 diophrw 39700 eldioph2lem1 39701 eldioph2lem2 39702 eldioph3 39707 diophin 39713 diophrex 39716 rexrabdioph 39735 2rexfrabdioph 39737 3rexfrabdioph 39738 4rexfrabdioph 39739 6rexfrabdioph 39740 7rexfrabdioph 39741 eldioph4b 39752 pwssplit4 40033 dvnprodlem1 42588 dvnprodlem3 42590 ismea 43090 isome 43133 |
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