12 lines
434 B
Lua
12 lines
434 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 = mk_local("a", "a", A)
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local b = mk_local("b", "a", 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)))(A, a, b, H)
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print(to_proof_state(m, eq(A, a, b)))
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local s = to_proof_state(m, eq(A, a, b))
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local g = s:goals():head()
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print(g)
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