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| Mirrors > Home > MPE Home > Th. List > funeqd | Structured version Visualization version GIF version | ||
| Description: Equality deduction for the function predicate. (Contributed by NM, 23-Feb-2013.) |
| Ref | Expression |
|---|---|
| funeqd.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| Ref | Expression |
|---|---|
| funeqd | ⊢ (𝜑 → (Fun 𝐴 ↔ Fun 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | funeqd.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | funeq 6559 | . 2 ⊢ (𝐴 = 𝐵 → (Fun 𝐴 ↔ Fun 𝐵)) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (𝜑 → (Fun 𝐴 ↔ Fun 𝐵)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 = wceq 1570 Fun wfun 6532 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2733 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-sb 2100 df-clab 2740 df-cleq 2753 df-clel 2836 df-ss 3916 df-br 5104 df-opab 5168 df-rel 5658 df-cnv 5659 df-co 5660 df-fun 6540 |
| This theorem is used by: funopg 6574 funsng 6591 f1eq1 6773 f1ssf1 6857 fvn0ssdmfun 7074 funcnvuni 7944 funen1cnv 9056 fundmge2nop0 14647 funcnvs2 15064 funcnvs3 15065 funcnvs4 15066 shftfn 15226 isstruct2 17327 structfung 17332 strle1 17336 setsfun 17349 setsfun0 17350 monfval 17907 ismon 17908 monpropd 17912 isepi 17915 isfth 18091 estrres 18313 lubfun 18524 glbfun 18537 acsficl2d 18726 ebtwntg 29560 ecgrtg 29561 elntg 29562 uhgrspansubgrlem 29871 istrl 30279 ispth 30306 isspth 30307 dfpth2 30314 pthhashvtx 30315 upgrwlkdvspth 30325 uhgrwkspthlem1 30339 uhgrwkspthlem2 30340 usgr2wlkspthlem1 30343 usgr2wlkspthlem2 30344 pthdlem1 30352 2spthd 30530 0spth 30717 3spthd 30777 trlsegvdeglem2 30822 trlsegvdeglem3 30823 ajfun 31462 fresf1o 33225 padct 33310 smatrcl 34428 esum2dlem 34724 omssubadd 34932 sitgf 34979 satfv0fun 36136 satffunlem1 36172 satffunlem2 36173 satffun 36174 satefvfmla0 36183 satefvfmla1 36190 hfstructfun 46025 fperdvper 46928 ovnovollem1 47665 tmachlem-agreefin 47957 funressnmo 48115 dfateq12d 48195 afvres 48241 funressndmafv2rn 48292 afv2res 48308 upgrimpths 49006 fdivval 49650 idfth 50265 idsubc 50267 |
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