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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 6568 | . 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 1569 Fun wfun 6541 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1812 df-sb 2101 df-clab 2742 df-cleq 2755 df-clel 2839 df-ss 3901 df-br 5107 df-opab 5171 df-rel 5662 df-cnv 5663 df-co 5664 df-fun 6549 |
| This theorem is used by: funopg 6583 funsng 6602 f1eq1 6784 f1ssf1 6868 fvn0ssdmfun 7085 funcnvuni 7954 funen1cnv 9070 fundmge2nop0 14660 funcnvs2 15079 funcnvs3 15080 funcnvs4 15081 shftfn 15241 isstruct2 17342 structfung 17347 strle1 17351 setsfun 17364 setsfun0 17365 monfval 17922 ismon 17923 monpropd 17927 isepi 17930 isfth 18106 estrres 18328 lubfun 18539 glbfun 18552 acsficl2d 18741 ebtwntg 29575 ecgrtg 29576 elntg 29577 uhgrspansubgrlem 29886 istrl 30294 ispth 30321 isspth 30322 dfpth2 30329 pthhashvtx 30330 upgrwlkdvspth 30340 uhgrwkspthlem1 30354 uhgrwkspthlem2 30355 usgr2wlkspthlem1 30358 usgr2wlkspthlem2 30359 pthdlem1 30367 2spthd 30545 0spth 30732 3spthd 30792 trlsegvdeglem2 30837 trlsegvdeglem3 30838 ajfun 31477 fresf1o 33282 padct 33367 smatrcl 34484 esum2dlem 34780 omssubadd 34988 sitgf 35035 satfv0fun 36260 satffunlem1 36296 satffunlem2 36297 satffun 36298 satefvfmla0 36307 satefvfmla1 36314 hfstructfun 46171 fperdvper 47074 ovnovollem1 47811 tmachlem-agreefin 48103 funressnmo 48261 dfateq12d 48341 afvres 48387 funressndmafv2rn 48438 afv2res 48454 upgrimpths 49152 fdivval 49796 idfth 50419 idsubc 50421 |
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