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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 6556 | . 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 6530 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 401 df-ex 1810 df-sb 2097 df-clab 2742 df-cleq 2755 df-clel 2838 df-ss 3922 df-br 5110 df-opab 5174 df-rel 5668 df-cnv 5669 df-co 5670 df-fun 6538 |
| This theorem is used by: funopg 6570 funsng 6587 f1eq1 6769 f1ssf1 6853 fvn0ssdmfun 7069 funcnvuni 7925 fundmge2nop0 14544 funcnvs2 14955 funcnvs3 14956 funcnvs4 14957 shftfn 15115 isstruct2 17213 structfung 17218 strle1 17222 setsfun 17235 setsfun0 17236 monfval 17793 ismon 17794 monpropd 17798 isepi 17801 isfth 17977 estrres 18199 lubfun 18410 glbfun 18423 acsficl2d 18612 ebtwntg 29341 ecgrtg 29342 elntg 29343 uhgrspansubgrlem 29649 istrl 30053 ispth 30079 isspth 30080 dfpth2 30087 upgrwlkdvspth 30097 uhgrwkspthlem1 30111 uhgrwkspthlem2 30112 usgr2wlkspthlem1 30115 usgr2wlkspthlem2 30116 pthdlem1 30124 2spthd 30299 0spth 30486 3spthd 30536 trlsegvdeglem2 30581 trlsegvdeglem3 30582 ajfun 31221 fresf1o 32985 padct 33072 smatrcl 34195 esum2dlem 34491 omssubadd 34699 sitgf 34746 funen1cnv 35486 pthhashvtx 35628 satfv0fun 35871 satffunlem1 35907 satffunlem2 35908 satffun 35909 satefvfmla0 35918 satefvfmla1 35925 fperdvper 46661 ovnovollem1 47398 funressnmo 47811 dfateq12d 47891 afvres 47937 funressndmafv2rn 47988 afv2res 48004 upgrimpths 48702 fdivval 49347 idfth 49964 idsubc 49966 |
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