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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 5377 | . 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 105 = wceq 1398 Fun wfun 5351 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2216 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-in 3220 df-ss 3227 df-br 4115 df-opab 4177 df-rel 4761 df-cnv 4762 df-co 4763 df-fun 5359 |
| This theorem is referenced by: funmpt 5395 funmpt2 5396 fununfun 5404 funprg 5411 funtpg 5412 funtp 5414 funcnvuni 5430 f1cnvcnv 5589 f1co 5590 fun11iun 5640 f10 5654 funopdmsn 5869 rinvf1o 6008 funoprabg 6160 mpofun 6163 ovidig 6179 tposfun 6504 tfri1dALT 6595 tfrcl 6608 rdgfun 6617 frecfun 6639 frecfcllem 6648 th3qcor 6886 ssdomg 7031 sbthlem7 7246 sbthlemi8 7247 casefun 7389 caseinj 7393 djufun 7408 djuinj 7410 ctssdccl 7415 axaddf 8199 axmulf 8200 fundm2domnop0 11245 strleund 13400 strleun 13401 1strbas 13414 2strbasg 13417 2stropg 13418 lidlmex 14749 usgredg3 16335 ushgredgedg 16347 ushgredgedgloop 16349 |
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