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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 5338 | . 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 1395 Fun wfun 5312 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-in 3203 df-ss 3210 df-br 4084 df-opab 4146 df-rel 4726 df-cnv 4727 df-co 4728 df-fun 5320 |
| This theorem is referenced by: funmpt 5356 funmpt2 5357 fununfun 5364 funprg 5371 funtpg 5372 funtp 5374 funcnvuni 5390 f1cnvcnv 5544 f1co 5545 fun11iun 5595 f10 5608 funopdmsn 5823 funoprabg 6109 mpofun 6112 ovidig 6128 tposfun 6412 tfri1dALT 6503 tfrcl 6516 rdgfun 6525 frecfun 6547 frecfcllem 6556 th3qcor 6794 ssdomg 6938 sbthlem7 7141 sbthlemi8 7142 casefun 7263 caseinj 7267 djufun 7282 djuinj 7284 ctssdccl 7289 axaddf 8066 axmulf 8067 fundm2domnop0 11080 strleund 13151 strleun 13152 1strbas 13165 2strbasg 13168 2stropg 13169 lidlmex 14454 usgredg3 16027 ushgredgedg 16039 ushgredgedgloop 16041 |
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