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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 5400 | . 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 5374 |
| 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 4132 df-opab 4194 df-rel 4783 df-cnv 4784 df-co 4785 df-fun 5382 |
| This theorem is used by: funmpt 5418 funmpt2 5419 fununfun 5427 funprg 5434 funtpg 5435 funtp 5437 funcnvuni 5453 f1cnvcnv 5612 f1co 5613 fun11iun 5663 f10 5677 funopdmsn 5898 rinvf1o 6038 funoprabg 6190 mpofun 6193 ovidig 6209 tposfun 6535 tfri1dALT 6626 tfrcl 6639 rdgfun 6648 frecfun 6670 frecfcllem 6679 th3qcor 6917 ssdomg 7069 sbthlem7 7285 sbthlemi8 7286 casefun 7431 caseinj 7435 djufun 7450 djuinj 7452 ctssdccl 7457 axaddf 8241 axmulf 8242 fundm2domnop0 11322 strleund 13516 strleun 13517 1strbas 13530 2strbasg 13533 2stropg 13534 mgpplusg 14329 lidlmex 14921 usgredg3 16660 ushgredgedg 16672 ushgredgedgloop 16674 |
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