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Mirrors > Home > ILE Home > Th. List > dmeqi | GIF version |
Description: Equality inference for domain. (Contributed by NM, 4-Mar-2004.) |
Ref | Expression |
---|---|
dmeqi.1 | ⊢ 𝐴 = 𝐵 |
Ref | Expression |
---|---|
dmeqi | ⊢ dom 𝐴 = dom 𝐵 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dmeqi.1 | . 2 ⊢ 𝐴 = 𝐵 | |
2 | dmeq 4747 | . 2 ⊢ (𝐴 = 𝐵 → dom 𝐴 = dom 𝐵) | |
3 | 1, 2 | ax-mp 5 | 1 ⊢ dom 𝐴 = dom 𝐵 |
Colors of variables: wff set class |
Syntax hints: = wceq 1332 dom cdm 4547 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 |
This theorem depends on definitions: df-bi 116 df-3an 965 df-tru 1335 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-v 2691 df-un 3080 df-in 3082 df-ss 3089 df-sn 3538 df-pr 3539 df-op 3541 df-br 3938 df-dm 4557 |
This theorem is referenced by: dmxpm 4767 dmxpid 4768 dmxpin 4769 rncoss 4817 rncoeq 4820 rnun 4955 rnin 4956 rnxpm 4976 rnxpss 4978 imainrect 4992 dmpropg 5019 dmtpop 5022 rnsnopg 5025 fntpg 5187 fnreseql 5538 dmoprab 5860 reldmmpo 5890 elmpocl 5976 tfrlem8 6223 tfr2a 6226 tfrlemi14d 6238 tfr1onlemres 6254 tfri1dALT 6256 tfrcllemres 6267 xpassen 6732 sbthlemi5 6857 casedm 6979 djudm 6998 ctssdccl 7004 dmaddpi 7157 dmmulpi 7158 dmaddpq 7211 dmmulpq 7212 axaddf 7700 axmulf 7701 ennnfonelemom 11957 ennnfonelemdm 11969 |
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