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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 4165 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴 ∩ (𝐶 × V)) = (𝐵 ∩ (𝐶 × V))) | |
| 2 | df-res 5657 | . 2 ⊢ (𝐴 ↾ 𝐶) = (𝐴 ∩ (𝐶 × V)) | |
| 3 | df-res 5657 | . 2 ⊢ (𝐵 ↾ 𝐶) = (𝐵 ∩ (𝐶 × V)) | |
| 4 | 1, 2, 3 | 3eqtr4g 2821 | 1 ⊢ (𝐴 = 𝐵 → (𝐴 ↾ 𝐶) = (𝐵 ↾ 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1559 Vcvv 3453 ∩ cin 3903 × cxp 5643 ↾ cres 5647 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-ext 2733 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-ex 1799 df-sb 2090 df-clab 2740 df-cleq 2753 df-clel 2836 df-rab 3414 df-in 3911 df-res 5657 |
| This theorem is referenced by: reseq1i 5959 reseq1d 5962 imaeq1 6041 fvtresfn 6974 eqfnun 7014 frrlem1 8262 frrlem13 8274 tfrlem12 8355 pmresg 8848 resixpfo 8914 mapunen 9114 fseqenlem1 9977 axdc3lem2 10405 axdc3lem4 10407 hashf1lem1 14465 lo1eq 15578 rlimeq 15579 symgfixfo 19462 lspextmo 21103 evlseu 22116 mdetunilem3 22654 mdetunilem4 22655 mdetunilem9 22660 lmbr 23298 ptuncnv 23847 iscau 25318 plyexmo 26354 relogf1o 26608 nosupprefixmo 27741 noinfprefixmo 27742 nosupcbv 27743 nosupno 27744 nosupdm 27745 nosupfv 27747 nosupres 27748 nosupbnd1lem1 27749 nosupbnd1lem3 27751 nosupbnd1lem5 27753 nosupbnd2 27757 noinfcbv 27758 noinfno 27759 noinfdm 27760 noinffv 27762 noinfres 27763 noinfbnd1lem1 27764 noinfbnd1lem3 27766 noinfbnd1lem5 27768 noinfbnd2 27772 extvfvv 33792 extvfvcl 33794 eulerpartlemt 34629 eulerpartlemgv 34631 eulerpartlemn 34639 eulerpart 34640 bnj1385 35091 bnj66 35119 bnj1234 35272 bnj1326 35285 bnj1463 35314 iscvm 35573 mbfresfi 38129 sdclem2 38205 isdivrngo 38413 evlselvlem 43134 evlselv 43135 mzpcompact2lem 43296 diophrw 43304 eldioph2lem1 43305 eldioph2lem2 43306 eldioph3 43311 diophin 43317 diophrex 43320 rexrabdioph 43335 2rexfrabdioph 43337 3rexfrabdioph 43338 4rexfrabdioph 43339 6rexfrabdioph 43340 7rexfrabdioph 43341 eldioph4b 43352 pwssplit4 43630 dvnprodlem1 46484 dvnprodlem3 46486 ismea 46989 isome 47032 |
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