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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 4198 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴 ∩ (𝐶 × V)) = (𝐵 ∩ (𝐶 × V))) | |
2 | df-res 5678 | . 2 ⊢ (𝐴 ↾ 𝐶) = (𝐴 ∩ (𝐶 × V)) | |
3 | df-res 5678 | . 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 3470 ∩ cin 3940 × cxp 5664 ↾ cres 5668 |
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 3430 df-in 3948 df-res 5678 |
This theorem is referenced by: reseq1i 5966 reseq1d 5969 imaeq1 6041 fvtresfn 6983 frrlem1 8250 frrlem13 8262 wfrlem1OLD 8287 wfrlem3OLDa 8290 wfrlem15OLD 8302 tfrlem12 8368 pmresg 8844 resixpfo 8910 mapunen 9126 fseqenlem1 9998 axdc3lem2 10425 axdc3lem4 10427 axdc 10495 hashf1lem1 14394 hashf1lem1OLD 14395 lo1eq 15491 rlimeq 15492 symgfixfo 19268 lspextmo 20611 evlseu 21570 mdetunilem3 22040 mdetunilem4 22041 mdetunilem9 22046 lmbr 22686 ptuncnv 23235 iscau 24717 plyexmo 25750 relogf1o 25999 nosupprefixmo 27125 noinfprefixmo 27126 nosupcbv 27127 nosupno 27128 nosupdm 27129 nosupfv 27131 nosupres 27132 nosupbnd1lem1 27133 nosupbnd1lem3 27135 nosupbnd1lem5 27137 nosupbnd2 27141 noinfcbv 27142 noinfno 27143 noinfdm 27144 noinffv 27146 noinfres 27147 noinfbnd1lem1 27148 noinfbnd1lem3 27150 noinfbnd1lem5 27152 noinfbnd2 27156 eulerpartlemt 33185 eulerpartlemgv 33187 eulerpartlemn 33195 eulerpart 33196 bnj1385 33658 bnj66 33686 bnj1234 33839 bnj1326 33852 bnj1463 33881 iscvm 34065 mbfresfi 36322 eqfnun 36379 sdclem2 36399 isdivrngo 36607 mzpcompact2lem 41246 diophrw 41254 eldioph2lem1 41255 eldioph2lem2 41256 eldioph3 41261 diophin 41267 diophrex 41270 rexrabdioph 41289 2rexfrabdioph 41291 3rexfrabdioph 41292 4rexfrabdioph 41293 6rexfrabdioph 41294 7rexfrabdioph 41295 eldioph4b 41306 pwssplit4 41588 dvnprodlem1 44421 dvnprodlem3 44423 ismea 44926 isome 44969 |
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