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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 5397 | . 2 ⊢ (𝐴 = 𝐵 → (Fun 𝐴 ↔ Fun 𝐵)) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (Fun 𝐴 ↔ Fun 𝐵) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ↔ wb 105 = wceq 1402 Fun wfun 5371 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-in 3226 df-ss 3233 df-br 4131 df-opab 4193 df-rel 4781 df-cnv 4782 df-co 4783 df-fun 5379 |
| This theorem is used by: funmpt 5415 funmpt2 5416 fununfun 5424 funprg 5431 funtpg 5432 funtp 5434 funcnvuni 5450 f1cnvcnv 5609 f1co 5610 fun11iun 5660 f10 5674 funopdmsn 5895 rinvf1o 6035 funoprabg 6187 mpofun 6190 ovidig 6206 tposfun 6531 tfri1dALT 6622 tfrcl 6635 rdgfun 6644 frecfun 6666 frecfcllem 6675 th3qcor 6913 ssdomg 7065 sbthlem7 7280 sbthlemi8 7281 casefun 7425 caseinj 7429 djufun 7444 djuinj 7446 ctssdccl 7451 axaddf 8235 axmulf 8236 fundm2domnop0 11300 strleund 13457 strleun 13458 1strbas 13471 2strbasg 13474 2stropg 13475 mgpplusg 14222 lidlmex 14812 usgredg3 16455 ushgredgedg 16467 ushgredgedgloop 16469 |
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