lean2/tests/lean/sig1.lean

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check sig (x y : Nat) (z : Bool), x > y ∧ z
check sig a : Nat, Nat
check Nat Bool Nat
check Nat # Bool # Nat
check Nat # Type # Nat
set_option pp::unicode false
check sig x : Nat, Nat
check Nat Bool Nat
set_option pp::unicode true