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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 5372 | . 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 5346 |
| 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 2214 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-in 3217 df-ss 3224 df-br 4110 df-opab 4172 df-rel 4756 df-cnv 4757 df-co 4758 df-fun 5354 |
| This theorem is referenced by: funmpt 5390 funmpt2 5391 fununfun 5399 funprg 5406 funtpg 5407 funtp 5409 funcnvuni 5425 f1cnvcnv 5584 f1co 5585 fun11iun 5635 f10 5649 funopdmsn 5864 funoprabg 6152 mpofun 6155 ovidig 6171 tposfun 6491 tfri1dALT 6582 tfrcl 6595 rdgfun 6604 frecfun 6626 frecfcllem 6635 th3qcor 6873 ssdomg 7018 sbthlem7 7233 sbthlemi8 7234 casefun 7376 caseinj 7380 djufun 7395 djuinj 7397 ctssdccl 7402 axaddf 8183 axmulf 8184 fundm2domnop0 11220 strleund 13316 strleun 13317 1strbas 13330 2strbasg 13333 2stropg 13334 lidlmex 14623 usgredg3 16209 ushgredgedg 16221 ushgredgedgloop 16223 |
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