19 lines
555 B
Lua
19 lines
555 B
Lua
local env = environment()
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local A = Local("A", Type)
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env = add_decl(env, mk_var_decl("eq", Pi(A, mk_arrow(A, A, Bool))))
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local eq = Const("eq")
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local a = Local("a", A)
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local b = Local("b", A)
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local H = Local("H", eq(A, a, b))
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local m = mk_metavar("m", Pi(A, a, b, H, eq(A, a, b)))
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print(to_proof_state(m))
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local s = to_proof_state(m)
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local n, g = s:goals():head()
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local hs = g:hyps()
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local h = hs:head()
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local pm = proof_map()
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pm:insert("main", h)
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local r = s:pb(pm, substitution())
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print(r)
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assert(env:infer_type(r) == env:infer_type(m))
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