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Mirrors > Home > ILE Home > Th. List > funeqi | GIF version |
Description: Equality inference for the function predicate. (Contributed by Jonathan Ben-Naim, 3-Jun-2011.) |
Ref | Expression |
---|---|
funeqi.1 | ⊢ 𝐴 = 𝐵 |
Ref | Expression |
---|---|
funeqi | ⊢ (Fun 𝐴 ↔ Fun 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | funeqi.1 | . 2 ⊢ 𝐴 = 𝐵 | |
2 | funeq 5151 | . 2 ⊢ (𝐴 = 𝐵 → (Fun 𝐴 ↔ Fun 𝐵)) | |
3 | 1, 2 | ax-mp 5 | 1 ⊢ (Fun 𝐴 ↔ Fun 𝐵) |
Colors of variables: wff set class |
Syntax hints: ↔ wb 104 = wceq 1332 Fun wfun 5125 |
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-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-in 3082 df-ss 3089 df-br 3938 df-opab 3998 df-rel 4554 df-cnv 4555 df-co 4556 df-fun 5133 |
This theorem is referenced by: funmpt 5169 funmpt2 5170 funprg 5181 funtpg 5182 funtp 5184 funcnvuni 5200 f1cnvcnv 5347 f1co 5348 fun11iun 5396 f10 5409 funoprabg 5878 mpofun 5881 ovidig 5896 tposfun 6165 tfri1dALT 6256 tfrcl 6269 rdgfun 6278 frecfun 6300 frecfcllem 6309 th3qcor 6541 ssdomg 6680 sbthlem7 6859 sbthlemi8 6860 casefun 6978 caseinj 6982 djufun 6997 djuinj 6999 ctssdccl 7004 axaddf 7700 axmulf 7701 strleund 12086 strleun 12087 1strbas 12097 2strbasg 12099 2stropg 12100 |
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