lean4-htt/doc/examples/Certora2022/ex4.lean
2022-11-21 17:02:28 -08:00

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/- What is the type of Nat? -/
#check 0
-- Nat
#check Nat
-- Type
#check Type
-- Type 1
#check Type 1
-- Type 2
#check Eq.refl 2
-- 2 = 2
#check 2 = 2
-- Prop
#check Prop
-- Type
example : Prop = Sort 0 := rfl
example : Type = Sort 1 := rfl
example : Type 1 = Sort 2 := rfl