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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 4110 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴 ∩ (𝐶 × V)) = (𝐵 ∩ (𝐶 × V))) | |
| 2 | df-res 5662 | . 2 ⊢ (𝐴 ↾ 𝐶) = (𝐴 ∩ (𝐶 × V)) | |
| 3 | df-res 5662 | . 2 ⊢ (𝐵 ↾ 𝐶) = (𝐵 ∩ (𝐶 × V)) | |
| 4 | 1, 2, 3 | 3eqtr4g 2820 | 1 ⊢ (𝐴 = 𝐵 → (𝐴 ↾ 𝐶) = (𝐵 ↾ 𝐶)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 Vcvv 3450 ∩ cin 4089 × cxp 5648 ↾ cres 5652 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-rab 3413 df-in 4091 df-res 5662 |
| This theorem is used by: reseq1i 5965 reseq1d 5968 imaeq1 6046 fvtresfn 6996 eqfnun 7036 frrlem1 8307 frrlem13 8319 tfrlem12 8400 pmresg 8901 resixpfo 8967 mapunen 9168 fseqenlem1 10106 axdc3lem2 10532 axdc3lem4 10534 hashf1lem1 14603 lo1eq 15740 rlimeq 15741 symgfixfo 19658 lspextmo 21336 evlseu 22397 mdetunilem3 22934 mdetunilem4 22935 mdetunilem9 22940 lmbr 23581 ptuncnv 24131 iscau 25602 plyexmo 26641 relogf1o 26899 nosupprefixmo 28062 noinfprefixmo 28063 nosupcbv 28064 nosupno 28065 nosupdm 28066 nosupfv 28068 nosupres 28069 nosupbnd1lem1 28070 nosupbnd1lem3 28072 nosupbnd1lem5 28074 nosupbnd2 28078 noinfcbv 28079 noinfno 28080 noinfdm 28081 noinffv 28083 noinfres 28084 noinfbnd1lem1 28085 noinfbnd1lem3 28087 noinfbnd1lem5 28089 noinfbnd2 28093 extvfvv 34212 extvfvcl 34214 eulerpartlemt 35049 eulerpartlemgv 35051 eulerpartlemn 35059 eulerpart 35060 bnj1385 35508 bnj66 35536 bnj1234 35689 bnj1326 35702 bnj1463 35731 iscvm 36110 mbfresfi 38677 sdclem2 38769 isdivrngo 38977 evlselvlem 43709 evlselv 43710 mzpcompact2lem 43855 diophrw 43863 eldioph2lem1 43864 eldioph2lem2 43865 eldioph3 43870 diophin 43876 diophrex 43879 rexrabdioph 43894 2rexfrabdioph 43896 3rexfrabdioph 43897 4rexfrabdioph 43898 6rexfrabdioph 43899 7rexfrabdioph 43900 eldioph4b 43911 pwssplit4 44184 dvnprodlem1 47049 dvnprodlem3 47051 ismea 47554 isome 47597 tmachlem-agreeself 48039 |
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