rationals working, sort of
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921afea1d3
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effc98d589
61
arith.modal
61
arith.modal
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@ -1,5 +1,6 @@
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<> (-- ?x) ()
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<> (-- ?x) ()
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-- ( little endian binary natural numbers and integers )
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-- ( N: little-endian natural numbers )
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-- ( constants )
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-- ( constants )
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<> zero ((0 ()))
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<> zero ((0 ()))
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@ -42,15 +43,23 @@
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<> ((tostr1 (N (?h ?t)) ?a)) ((tostr2 (divmod (N (?h ?t)) (N ten)) ?a))
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<> ((tostr1 (N (?h ?t)) ?a)) ((tostr2 (divmod (N (?h ?t)) (N ten)) ?a))
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<> ((tostr2 ((N ?q) (N ?r)) ?a)) ((tostr1 (N ?q) ((decimal ?r) ?a)))
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<> ((tostr2 ((N ?q) (N ?r)) ?a)) ((tostr1 (N ?q) ((decimal ?r) ?a)))
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-- ( concatenate lists )
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<> ((concat (?h ?t) ?r)) ((?h (concat ?t ?r)))
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<> ((concat () ?r)) (?r)
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-- ( to string )
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-- ( to string )
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<> ((str (N ?x))) (emit force (tostr (N ?x)))
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<> ((str (Z (+ ?x)))) ((str (N ?x)))
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<> ((str (Z (+ ?x)))) ((str (N ?x)))
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<> ((str (Z (- ?x)))) (emit force (- (tostr (N ?x))))
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<> ((str (Z (- ?x)))) (emit force (- (tostr (N ?x))))
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<> ((str (N ?x))) (emit force (tostr (N ?x)))
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<> ((str (Q (?s ?n ?d)))) ((qstr ?s (force (tostr (N ?n))) (force (tostr (N ?d)))))
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<> ((qstr + (force/r ?l) (force/r ?m))) (emit force (concat ?l (/ ?m)))
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<> ((qstr - (force/r ?l) (force/r ?m))) (emit force (concat (- ?l) (/ ?m)))
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-- ( force a list to evaluate to digits/letters )
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-- ( force a list to evaluate to digits/letters )
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<> ((?h force/r ?t)) (force/r (?h ?t))
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<> ((?h force/r ?t)) (force/r (?h ?t))
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<> (force ()) (force/r ())
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<> (force ()) (force/r ())
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<> (force (- ?t)) ((- force ?t))
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<> (force (- ?t)) ((- force ?t))
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<> (force (/ ?t)) ((/ force ?t))
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<> (force (0 ?t)) ((0 force ?t))
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<> (force (0 ?t)) ((0 force ?t))
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<> (force (1 ?t)) ((1 force ?t))
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<> (force (1 ?t)) ((1 force ?t))
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<> (force (2 ?t)) ((2 force ?t))
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<> (force (2 ?t)) ((2 force ?t))
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@ -201,8 +210,8 @@
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<> ((mod1 (?q ?r))) (?r)
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<> ((mod1 (?q ?r))) (?r)
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-- ( expontentiation )
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-- ( expontentiation )
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<> ((pow (N ?x) ())) ((N (1 ())))
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<> ((pow (N ?x) ())) ((N one))
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<> ((pow (N ?x) (N (0 ())))) ((N (1 ())))
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<> ((pow (N ?x) (N (0 ())))) ((pow (N ?x) ()))
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<> ((pow (N ?x) (N (1 ())))) ((N ?x))
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<> ((pow (N ?x) (N (1 ())))) ((N ?x))
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<> ((pow (N ?x) (N (0 ?k)))) ((pow (mul (N ?x) (N ?x)) (N ?k)))
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<> ((pow (N ?x) (N (0 ?k)))) ((pow (mul (N ?x) (N ?x)) (N ?k)))
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<> ((pow (N ?x) (N (1 ?k)))) ((mul (N ?x) (pow (mul (N ?x) (N ?x)) (N ?k))))
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<> ((pow (N ?x) (N (1 ?k)))) ((mul (N ?x) (pow (mul (N ?x) (N ?x)) (N ?k))))
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@ -267,6 +276,8 @@
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<> ((decimal (0 (0 (0 (1 ())))))) (8)
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<> ((decimal (0 (0 (0 (1 ())))))) (8)
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<> ((decimal (1 (0 (0 (1 ())))))) (9)
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<> ((decimal (1 (0 (0 (1 ())))))) (9)
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-- ( Z: signed integers )
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<> ((nat>int + (N ?x))) ((Z (+ ?x)))
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<> ((nat>int + (N ?x))) ((Z (+ ?x)))
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<> ((nat>int - (N ?x))) ((Z (- ?x)))
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<> ((nat>int - (N ?x))) ((Z (- ?x)))
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<> ((nat>pos (N ?x))) ((Z (+ ?x)))
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<> ((nat>pos (N ?x))) ((Z (+ ?x)))
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@ -277,7 +288,7 @@
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<> ((cmp (Z (?s (0 ()))) (Z (?s (0 ()))))) (#eq)
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<> ((cmp (Z (?s (0 ()))) (Z (?s (0 ()))))) (#eq)
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<> ((cmp (Z (+ ?x)) (Z (+ ?y)))) ((cmp (N ?x) (N ?y)))
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<> ((cmp (Z (+ ?x)) (Z (+ ?y)))) ((cmp (N ?x) (N ?y)))
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<> ((cmp (Z (+ ?x)) (Z (- ?y)))) (#gt)
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<> ((cmp (Z (+ ?x)) (Z (?s ?y)))) (#gt)
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<> ((cmp (Z (- ?x)) (Z (- ?y)))) ((cmp (N ?y) (N ?x)))
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<> ((cmp (Z (- ?x)) (Z (- ?y)))) ((cmp (N ?y) (N ?x)))
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<> ((cmp (Z (- ?x)) (Z (?s ?y)))) (#lt)
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<> ((cmp (Z (- ?x)) (Z (?s ?y)))) (#lt)
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@ -326,4 +337,42 @@
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<> ((int1 (?h ?t))) ((int2 + (nat1 (?h ?t))))
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<> ((int1 (?h ?t))) ((int2 + (nat1 (?h ?t))))
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<> ((int2 ?s (N ?x))) ((Z (?s ?x)))
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<> ((int2 ?s (N ?x))) ((Z (?s ?x)))
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(str (mul (int -133) (int 77)))
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-- ( Q: rational numbers )
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-- ( ensure n and d are coprime by dividing both by their gcd )
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<> ((ratify ?s (N (0 ())) (N ?d))) ((Q (+ zero one)))
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<> ((ratify ?s (N ?n) (N ?d))) ((ratify1 ?s (N ?n) (N ?d) (gcd (N ?n) (N ?d))))
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<> ((ratify1 ?s (N ?n) (N ?d) (N ?g))) ((ratify2 ?s (div (N ?n) (N ?g)) (div (N ?d) (N ?g))))
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<> ((ratify2 ?s (N ?n) (N ?d))) ((Q (?s ?n ?d)))
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-- ( convert N to Q )
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<> ((nat>rat + (N ?x))) ((Q (+ ?x one)))
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<> ((nat>rat - (N ?x))) ((Q (- ?x one)))
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-- ( convert Z to Q )
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<> ((int>rat (Z (+ ?x)))) ((Q (+ ?x one)))
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<> ((int>rat (Z (- ?x)))) ((Q (- ?x one)))
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<> ((negate (Q (+ ?n ?d)))) ((Q (- ?n ?d)))
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<> ((negate (Q (- ?n ?d)))) ((Q (+ ?n ?d)))
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<> ((cmp (Q (?s (0 ()) (1 ()))) (Q (?s (0 ()) (1 ()))))) (#eq)
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<> ((cmp (Q (+ ?x ?d)) (Q (+ ?y ?e)))) ((cmp (mul (N ?x) (N ?e)) (mul (N ?y) (N ?d))))
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<> ((cmp (Q (+ ?x ?d)) (Q (?s ?y ?e)))) (#gt)
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<> ((cmp (Q (- ?x ?d)) (Q (- ?y ?e)))) ((cmp (mul (N ?y) (N ?d)) (mul (N ?x) (N ?e))))
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<> ((cmp (Q (- ?x ?d)) (Q (?s ?y ?e)))) (#lt)
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<> ((add (Q (?s ?x ?d)) (Q (?t ?y ?e)))) ((qadd1 ?s ?t (mul (N ?x) (N ?e)) (mul (N ?y) (N ?d)) (mul (N ?d) (N ?e))))
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<> ((qadd1 ?s ?t (N ?x) (N ?y) (N ?d))) ((qadd2 (add (Z (?s ?x)) (Z (?t ?y))) (N ?d)))
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<> ((qadd2 (Z (?s ?n)) (N ?d))) ((ratify ?s (N ?n) (N ?d)))
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<> ((sub (Q (?s ?x ?d)) (Q (?t ?y ?e)))) ((qsub1 ?s ?t (mul (N ?x) (N ?e)) (mul (N ?y) (N ?d)) (mul (N ?d) (N ?e))))
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<> ((qsub1 ?s ?t (N ?x) (N ?y) (N ?d))) ((qsub2 (sub (Z (?s ?x)) (Z (?t ?y))) (N ?d)))
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<> ((qsub2 (Z (?s ?n)) (N ?d))) ((ratify ?s (N ?n) (N ?d)))
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<> ((mul (Q (?s ?x ?d)) (Q (?t ?y ?e)))) ((qmul1 (mul (Z (?s ?x)) (Z (?t ?y))) (mul (N ?d) (N ?e))))
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<> ((qmul1 (Z (?s ?n)) (N ?d))) ((ratify ?s (N ?n) (N ?d)))
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<> ((div (Q (?s ?x ?d)) (Q (?t ?y ?e)))) ((mul (Q (?s ?x ?d)) (Q (?t ?e ?y))))
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(str (mul (Q (+ sixteen ten)) (Q (- sixteen ten))))
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