16 lines
719 B
Lua
16 lines
719 B
Lua
local env = environment()
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local group = Const("group")
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local carrier = Const("carrier")
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local real = Const("real")
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local nat = Const("nat")
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env = add_decl(env, mk_var_decl("group", mk_sort(2)))
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env = add_decl(env, mk_var_decl("carrier", mk_arrow(group, Type)))
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env = add_decl(env, mk_var_decl("real", Type))
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env = add_decl(env, mk_var_decl("nat", Type))
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env = add_decl(env, mk_var_decl("real_group", group))
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env = add_decl(env, mk_var_decl("nat_group", group))
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local real_group = Const("real_group")
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local nat_group = Const("nat_group")
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local m = mk_metavar("m", mk_metavar("m_ty", mk_sort(mk_meta_univ("u"))))
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local cs = { mk_eq_cnstr(carrier(m), real) }
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assert(not unify(env, cs, name_generator())())
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