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Squash merge of 76 commits from loops/minikanren. Adds lib/minikanren/ — a complete miniKanren-on-SX implementation built on top of lib/guest/match.sx, validating the lib-guest unify-and-match kit as intended. Modules (20 .sx files, ~1700 LOC): unify, stream, goals, fresh, conde, condu, conda, run, relations, peano, intarith, project, nafc, matche, fd, queens, defrel, clpfd, tabling Phases 1–5 fully done (core miniKanren API, all classic relations, matche, conda, project, nafc). Phase 6 — native CLP(FD): domain primitives, fd-in / fd-eq / fd-neq / fd-lt / fd-lte / fd-plus / fd-times / fd-distinct / fd-label, with constraint reactivation iterating to fixed point. N-queens via FD: 4-queens 2 solutions, 5-queens 10 solutions (vs naive timeout past N=4). Phase 7 — naive ground-arg tabling: table-1 / table-2 / table-3. Fibonacci canary: tab-fib(25) = 75025 in seconds, naive fib(25) times out at 60s. Ackermann via table-3: A(3,3) = 61. 71 test files, 644+ tests passing across the suite. Producer/consumer SLG (cyclic patho, mutual recursion) deferred — research-grade work. The lib-guest validation experiment is conclusive: lib/minikanren/ unify.sx adds ~50 lines of local logic (custom cfg, deep walk*, fresh counter) over lib/guest/match.sx's ~100-line kit. The kit earns its keep ~3× by line count.
37 lines
838 B
Plaintext
37 lines
838 B
Plaintext
;; lib/minikanren/tests/pythag.sx — Pythagorean triple search.
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;;
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;; Uses ino + intarith goals to find triples (a, b, c) with
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;; a, b, c ∈ [1..N], a ≤ b, a² + b² = c². With intarith escapes
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;; the search runs at host-arithmetic speed.
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(define
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digits-1-10
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(list
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1
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2
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3
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4
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5
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6
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7
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8
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9
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10))
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(mk-test
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"pythag-triples-1-to-10"
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(let
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((triples (run* q (fresh (a b c a-sq b-sq sum c-sq) (ino a digits-1-10) (ino b digits-1-10) (ino c digits-1-10) (lteo-i a b) (*o-i a a a-sq) (*o-i b b b-sq) (*o-i c c c-sq) (pluso-i a-sq b-sq sum) (== sum c-sq) (== q (list a b c))))))
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(and
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(= (len triples) 2)
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(and
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(some
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(fn (t) (= t (list 3 4 5)))
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triples)
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(some
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(fn (t) (= t (list 6 8 10)))
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triples))))
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true)
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(mk-tests-run!)
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