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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 4159 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴 ∩ (𝐶 × V)) = (𝐵 ∩ (𝐶 × V))) | |
| 2 | df-res 5663 | . 2 ⊢ (𝐴 ↾ 𝐶) = (𝐴 ∩ (𝐶 × V)) | |
| 3 | df-res 5663 | . 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 |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 Vcvv 3451 ∩ cin 3898 × cxp 5649 ↾ cres 5653 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2733 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-sb 2100 df-clab 2740 df-cleq 2753 df-clel 2836 df-rab 3414 df-in 3906 df-res 5663 |
| This theorem is used by: reseq1i 5966 reseq1d 5969 imaeq1 6049 fvtresfn 6988 eqfnun 7028 frrlem1 8288 frrlem13 8300 tfrlem12 8381 pmresg 8882 resixpfo 8948 mapunen 9149 fseqenlem1 10084 axdc3lem2 10510 axdc3lem4 10512 hashf1lem1 14580 lo1eq 15715 rlimeq 15716 symgfixfo 19633 lspextmo 21311 evlseu 22372 mdetunilem3 22909 mdetunilem4 22910 mdetunilem9 22915 lmbr 23556 ptuncnv 24106 iscau 25577 plyexmo 26618 relogf1o 26876 nosupprefixmo 28039 noinfprefixmo 28040 nosupcbv 28041 nosupno 28042 nosupdm 28043 nosupfv 28045 nosupres 28046 nosupbnd1lem1 28047 nosupbnd1lem3 28049 nosupbnd1lem5 28051 nosupbnd2 28055 noinfcbv 28056 noinfno 28057 noinfdm 28058 noinffv 28060 noinfres 28061 noinfbnd1lem1 28062 noinfbnd1lem3 28064 noinfbnd1lem5 28066 noinfbnd2 28070 extvfvv 34148 extvfvcl 34150 eulerpartlemt 34986 eulerpartlemgv 34988 eulerpartlemn 34996 eulerpart 34997 bnj1385 35445 bnj66 35473 bnj1234 35626 bnj1326 35639 bnj1463 35668 iscvm 35993 mbfresfi 38552 sdclem2 38644 isdivrngo 38852 evlselvlem 43578 evlselv 43579 mzpcompact2lem 43715 diophrw 43723 eldioph2lem1 43724 eldioph2lem2 43725 eldioph3 43730 diophin 43736 diophrex 43739 rexrabdioph 43754 2rexfrabdioph 43756 3rexfrabdioph 43757 4rexfrabdioph 43758 6rexfrabdioph 43759 7rexfrabdioph 43760 eldioph4b 43771 pwssplit4 44049 dvnprodlem1 46900 dvnprodlem3 46902 ismea 47405 isome 47448 tmachlem-agreeself 47890 |
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