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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 4196 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴 ∩ (𝐶 × V)) = (𝐵 ∩ (𝐶 × V))) | |
2 | df-res 5676 | . 2 ⊢ (𝐴 ↾ 𝐶) = (𝐴 ∩ (𝐶 × V)) | |
3 | df-res 5676 | . 2 ⊢ (𝐵 ↾ 𝐶) = (𝐵 ∩ (𝐶 × V)) | |
4 | 1, 2, 3 | 3eqtr4g 2796 | 1 ⊢ (𝐴 = 𝐵 → (𝐴 ↾ 𝐶) = (𝐵 ↾ 𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1541 Vcvv 3469 ∩ cin 3938 × cxp 5662 ↾ cres 5666 |
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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-ext 2702 |
This theorem depends on definitions: df-bi 206 df-an 397 df-ex 1782 df-sb 2068 df-clab 2709 df-cleq 2723 df-clel 2809 df-rab 3429 df-in 3946 df-res 5676 |
This theorem is referenced by: reseq1i 5964 reseq1d 5967 imaeq1 6039 fvtresfn 6981 frrlem1 8248 frrlem13 8260 wfrlem1OLD 8285 wfrlem3OLDa 8288 wfrlem15OLD 8300 tfrlem12 8366 pmresg 8842 resixpfo 8908 mapunen 9124 fseqenlem1 9996 axdc3lem2 10423 axdc3lem4 10425 axdc 10493 hashf1lem1 14392 hashf1lem1OLD 14393 lo1eq 15489 rlimeq 15490 symgfixfo 19266 lspextmo 20609 evlseu 21568 mdetunilem3 22038 mdetunilem4 22039 mdetunilem9 22044 lmbr 22684 ptuncnv 23233 iscau 24715 plyexmo 25748 relogf1o 25997 nosupprefixmo 27123 noinfprefixmo 27124 nosupcbv 27125 nosupno 27126 nosupdm 27127 nosupfv 27129 nosupres 27130 nosupbnd1lem1 27131 nosupbnd1lem3 27133 nosupbnd1lem5 27135 nosupbnd2 27139 noinfcbv 27140 noinfno 27141 noinfdm 27142 noinffv 27144 noinfres 27145 noinfbnd1lem1 27146 noinfbnd1lem3 27148 noinfbnd1lem5 27150 noinfbnd2 27154 eulerpartlemt 33136 eulerpartlemgv 33138 eulerpartlemn 33146 eulerpart 33147 bnj1385 33609 bnj66 33637 bnj1234 33790 bnj1326 33803 bnj1463 33832 iscvm 34016 mbfresfi 36273 eqfnun 36330 sdclem2 36350 isdivrngo 36558 mzpcompact2lem 41197 diophrw 41205 eldioph2lem1 41206 eldioph2lem2 41207 eldioph3 41212 diophin 41218 diophrex 41221 rexrabdioph 41240 2rexfrabdioph 41242 3rexfrabdioph 41243 4rexfrabdioph 41244 6rexfrabdioph 41245 7rexfrabdioph 41246 eldioph4b 41257 pwssplit4 41539 dvnprodlem1 44372 dvnprodlem3 44374 ismea 44877 isome 44920 |
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