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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 6560 | . 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 6534 |
| 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 2148 ax-9 2156 ax-ext 2737 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-sb 2100 df-clab 2744 df-cleq 2757 df-clel 2840 df-ss 3923 df-br 5112 df-opab 5176 df-rel 5670 df-cnv 5671 df-co 5672 df-fun 6542 |
| This theorem is used by: funopg 6574 funsng 6591 f1eq1 6773 f1ssf1 6857 fvn0ssdmfun 7073 funcnvuni 7935 funen1cnv 9032 fundmge2nop0 14561 funcnvs2 14978 funcnvs3 14979 funcnvs4 14980 shftfn 15138 isstruct2 17235 structfung 17240 strle1 17244 setsfun 17257 setsfun0 17258 monfval 17815 ismon 17816 monpropd 17820 isepi 17823 isfth 17999 estrres 18221 lubfun 18432 glbfun 18445 acsficl2d 18634 ebtwntg 29391 ecgrtg 29392 elntg 29393 uhgrspansubgrlem 29702 istrl 30110 ispth 30137 isspth 30138 dfpth2 30145 pthhashvtx 30146 upgrwlkdvspth 30156 uhgrwkspthlem1 30170 uhgrwkspthlem2 30171 usgr2wlkspthlem1 30174 usgr2wlkspthlem2 30175 pthdlem1 30183 2spthd 30361 0spth 30548 3spthd 30602 trlsegvdeglem2 30647 trlsegvdeglem3 30648 ajfun 31287 fresf1o 33051 padct 33137 smatrcl 34254 esum2dlem 34550 omssubadd 34759 sitgf 34806 satfv0fun 35904 satffunlem1 35940 satffunlem2 35941 satffun 35942 satefvfmla0 35951 satefvfmla1 35958 fperdvper 46710 ovnovollem1 47447 funressnmo 47860 dfateq12d 47940 afvres 47986 funressndmafv2rn 48037 afv2res 48053 upgrimpths 48751 fdivval 49395 idfth 50012 idsubc 50014 |
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