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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 5353 | . 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 5327 |
| 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 2213 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-in 3207 df-ss 3214 df-br 4094 df-opab 4156 df-rel 4738 df-cnv 4739 df-co 4740 df-fun 5335 |
| This theorem is referenced by: funmpt 5371 funmpt2 5372 fununfun 5380 funprg 5387 funtpg 5388 funtp 5390 funcnvuni 5406 f1cnvcnv 5562 f1co 5563 fun11iun 5613 f10 5627 funopdmsn 5842 funoprabg 6130 mpofun 6133 ovidig 6149 tposfun 6469 tfri1dALT 6560 tfrcl 6573 rdgfun 6582 frecfun 6604 frecfcllem 6613 th3qcor 6851 ssdomg 6995 sbthlem7 7205 sbthlemi8 7206 casefun 7327 caseinj 7331 djufun 7346 djuinj 7348 ctssdccl 7353 axaddf 8131 axmulf 8132 fundm2domnop0 11158 strleund 13249 strleun 13250 1strbas 13263 2strbasg 13266 2stropg 13267 lidlmex 14554 usgredg3 16138 ushgredgedg 16150 ushgredgedgloop 16152 |
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