| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 5346 | . 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 1397 Fun wfun 5320 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-in 3206 df-ss 3213 df-br 4089 df-opab 4151 df-rel 4732 df-cnv 4733 df-co 4734 df-fun 5328 |
| This theorem is referenced by: funmpt 5364 funmpt2 5365 fununfun 5373 funprg 5380 funtpg 5381 funtp 5383 funcnvuni 5399 f1cnvcnv 5553 f1co 5554 fun11iun 5604 f10 5618 funopdmsn 5833 funoprabg 6119 mpofun 6122 ovidig 6138 tposfun 6425 tfri1dALT 6516 tfrcl 6529 rdgfun 6538 frecfun 6560 frecfcllem 6569 th3qcor 6807 ssdomg 6951 sbthlem7 7161 sbthlemi8 7162 casefun 7283 caseinj 7287 djufun 7302 djuinj 7304 ctssdccl 7309 axaddf 8087 axmulf 8088 fundm2domnop0 11108 strleund 13185 strleun 13186 1strbas 13199 2strbasg 13202 2stropg 13203 lidlmex 14488 usgredg3 16064 ushgredgedg 16076 ushgredgedgloop 16078 |
| Copyright terms: Public domain | W3C validator |