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koizel
personoj
Commits
4c24a339
Commit
4c24a339
authored
5 years ago
by
gabrielhdt
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times work with no binding
parent
b56541e3
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sandbox/cert_f/rat.lp
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4c24a339
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@@ -11,10 +11,22 @@ symbol frac : Term nat ⇒ Term N.nznat ⇒ Term rat
symbol times : @Term Type rat ⇒ @Term Type rat ⇒ @Term Type rat
rule times (frac &a &b) (frac &c &d) →
let bv ≔ @fst nat N.not_zero &b in
let bpr ≔ @snd nat N.not_zero &b in
let dv ≔ @fst nat N.not_zero &d in
let dpr ≔ @snd nat N.not_zero &d in
frac
(N.times &a &c)
(N.nznatc (N.times bv dv) (N.prod_not_zero bv dv bpr dpr))
(N.nznatc
(N.times (fst N.not_zero &b) (fst N.not_zero &d))
(N.prod_not_zero
(fst N.not_zero &b)
(fst N.not_zero &d)
(snd N.not_zero &b)
(snd N.not_zero &d)))
// rule times (frac &a &b) (frac &c &d) →
// let bv ≔ @fst nat N.not_zero &b in
// let bpr ≔ @snd nat N.not_zero &b in
// let dv ≔ @fst nat N.not_zero &d in
// let dpr ≔ @snd nat N.not_zero &d in
// frac
// (N.times &a &c)
// (N.nznatc (N.times bv dv) (N.prod_not_zero bv dv bpr dpr))
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