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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 5392 | . 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 1402 Fun wfun 5366 |
| 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 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 theorem 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 4126 df-opab 4188 df-rel 4776 df-cnv 4777 df-co 4778 df-fun 5374 |
| This theorem is referenced by: funmpt 5410 funmpt2 5411 fununfun 5419 funprg 5426 funtpg 5427 funtp 5429 funcnvuni 5445 f1cnvcnv 5604 f1co 5605 fun11iun 5655 f10 5669 funopdmsn 5886 rinvf1o 6025 funoprabg 6177 mpofun 6180 ovidig 6196 tposfun 6521 tfri1dALT 6612 tfrcl 6625 rdgfun 6634 frecfun 6656 frecfcllem 6665 th3qcor 6903 ssdomg 7055 sbthlem7 7270 sbthlemi8 7271 casefun 7415 caseinj 7419 djufun 7434 djuinj 7436 ctssdccl 7441 axaddf 8225 axmulf 8226 fundm2domnop0 11278 strleund 13434 strleun 13435 1strbas 13448 2strbasg 13451 2stropg 13452 lidlmex 14784 usgredg3 16369 ushgredgedg 16381 ushgredgedgloop 16383 |
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