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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 4154 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴 ∩ (𝐶 × V)) = (𝐵 ∩ (𝐶 × V))) | |
| 2 | df-res 5636 | . 2 ⊢ (𝐴 ↾ 𝐶) = (𝐴 ∩ (𝐶 × V)) | |
| 3 | df-res 5636 | . 2 ⊢ (𝐵 ↾ 𝐶) = (𝐵 ∩ (𝐶 × V)) | |
| 4 | 1, 2, 3 | 3eqtr4g 2797 | 1 ⊢ (𝐴 = 𝐵 → (𝐴 ↾ 𝐶) = (𝐵 ↾ 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 Vcvv 3430 ∩ cin 3889 × cxp 5622 ↾ cres 5626 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-rab 3391 df-in 3897 df-res 5636 |
| This theorem is referenced by: reseq1i 5934 reseq1d 5937 imaeq1 6014 fvtresfn 6944 eqfnun 6983 frrlem1 8229 frrlem13 8241 tfrlem12 8321 pmresg 8811 resixpfo 8877 mapunen 9077 fseqenlem1 9937 axdc3lem2 10364 axdc3lem4 10366 hashf1lem1 14408 lo1eq 15521 rlimeq 15522 symgfixfo 19405 lspextmo 21043 evlseu 22071 mdetunilem3 22589 mdetunilem4 22590 mdetunilem9 22595 lmbr 23233 ptuncnv 23782 iscau 25253 plyexmo 26290 relogf1o 26543 nosupprefixmo 27678 noinfprefixmo 27679 nosupcbv 27680 nosupno 27681 nosupdm 27682 nosupfv 27684 nosupres 27685 nosupbnd1lem1 27686 nosupbnd1lem3 27688 nosupbnd1lem5 27690 nosupbnd2 27694 noinfcbv 27695 noinfno 27696 noinfdm 27697 noinffv 27699 noinfres 27700 noinfbnd1lem1 27701 noinfbnd1lem3 27703 noinfbnd1lem5 27705 noinfbnd2 27709 extvfvv 33693 extvfvcl 33695 eulerpartlemt 34531 eulerpartlemgv 34533 eulerpartlemn 34541 eulerpart 34542 bnj1385 34990 bnj66 35018 bnj1234 35171 bnj1326 35184 bnj1463 35213 iscvm 35457 mbfresfi 38001 sdclem2 38077 isdivrngo 38285 evlselvlem 43033 evlselv 43034 mzpcompact2lem 43197 diophrw 43205 eldioph2lem1 43206 eldioph2lem2 43207 eldioph3 43212 diophin 43218 diophrex 43221 rexrabdioph 43240 2rexfrabdioph 43242 3rexfrabdioph 43243 4rexfrabdioph 43244 6rexfrabdioph 43245 7rexfrabdioph 43246 eldioph4b 43257 pwssplit4 43535 dvnprodlem1 46392 dvnprodlem3 46394 ismea 46897 isome 46940 |
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