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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 5344 | . 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 5318 |
| 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 3204 df-ss 3211 df-br 4087 df-opab 4149 df-rel 4730 df-cnv 4731 df-co 4732 df-fun 5326 |
| This theorem is referenced by: funmpt 5362 funmpt2 5363 fununfun 5370 funprg 5377 funtpg 5378 funtp 5380 funcnvuni 5396 f1cnvcnv 5550 f1co 5551 fun11iun 5601 f10 5614 funopdmsn 5829 funoprabg 6115 mpofun 6118 ovidig 6134 tposfun 6421 tfri1dALT 6512 tfrcl 6525 rdgfun 6534 frecfun 6556 frecfcllem 6565 th3qcor 6803 ssdomg 6947 sbthlem7 7153 sbthlemi8 7154 casefun 7275 caseinj 7279 djufun 7294 djuinj 7296 ctssdccl 7301 axaddf 8078 axmulf 8079 fundm2domnop0 11099 strleund 13176 strleun 13177 1strbas 13190 2strbasg 13193 2stropg 13194 lidlmex 14479 usgredg3 16053 ushgredgedg 16065 ushgredgedgloop 16067 |
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