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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 6553 | . 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 6527 |
| 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 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-sb 2100 df-clab 2739 df-cleq 2752 df-clel 2835 df-ss 3916 df-br 5104 df-opab 5168 df-rel 5662 df-cnv 5663 df-co 5664 df-fun 6535 |
| This theorem is used by: funopg 6568 funsng 6585 f1eq1 6767 f1ssf1 6851 fvn0ssdmfun 7068 funcnvuni 7930 funen1cnv 9038 fundmge2nop0 14570 funcnvs2 14987 funcnvs3 14988 funcnvs4 14989 shftfn 15149 isstruct2 17244 structfung 17249 strle1 17253 setsfun 17266 setsfun0 17267 monfval 17824 ismon 17825 monpropd 17829 isepi 17832 isfth 18008 estrres 18230 lubfun 18441 glbfun 18454 acsficl2d 18643 ebtwntg 29442 ecgrtg 29443 elntg 29444 uhgrspansubgrlem 29753 istrl 30161 ispth 30188 isspth 30189 dfpth2 30196 pthhashvtx 30197 upgrwlkdvspth 30207 uhgrwkspthlem1 30221 uhgrwkspthlem2 30222 usgr2wlkspthlem1 30225 usgr2wlkspthlem2 30226 pthdlem1 30234 2spthd 30412 0spth 30599 3spthd 30659 trlsegvdeglem2 30704 trlsegvdeglem3 30705 ajfun 31344 fresf1o 33107 padct 33192 smatrcl 34309 esum2dlem 34605 omssubadd 34814 sitgf 34861 satfv0fun 35953 satffunlem1 35989 satffunlem2 35990 satffun 35991 satefvfmla0 36000 satefvfmla1 36007 fperdvper 46750 ovnovollem1 47487 tmachlem-agreefin 47779 funressnmo 47937 dfateq12d 48017 afvres 48063 funressndmafv2rn 48114 afv2res 48130 upgrimpths 48828 fdivval 49472 idfth 50087 idsubc 50089 |
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