lean2/tests/lua/env8.lua

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local env = environment()
local nat = Const("nat")
env = add_inductive(env,
"nat", Type,
"zero", nat,
"succ", mk_arrow(nat, nat))
-- Display all declarations in the environment
env:for_each(function(d)
print(tostring(d:name()) .. " : " .. tostring(d:type()))
end
)