32 lines
1.1 KiB
Text
32 lines
1.1 KiB
Text
import Lean.Expr
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open Lean
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def main : IO Unit :=
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do let f := mkConst `f [];
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let x := mkConst `x [];
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let y := mkConst `y [];
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let t1 := mkApp f x;
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let t2 := t1.updateApp! f y;
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let t3 := t1.updateApp! f x;
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let t4 := mkProj `Prod 1 x;
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let t5 := t4.updateProj! y;
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let t6 := t4.updateProj! x;
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let x₁ := x.updateConst! [levelOne];
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let x₂ := x.updateConst! [];
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let s := mkSort levelOne;
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let s₁ := s.updateSort! levelOne;
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let s₂ := s.updateSort! levelZero;
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let a := mkForall `x BinderInfo.default s s;
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let a₁ := a.updateForall! BinderInfo.default s s;
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let a₂ := a.updateForall! BinderInfo.default s₂ s;
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let nat := mkConst `Nat [];
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let id := mkLambda `x BinderInfo.default nat (mkBVar 0);
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let id₁ := id.updateLambda! BinderInfo.default s (mkBVar 0);
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let id₂ := id.updateLambda! BinderInfo.default nat (mkBVar 0);
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let l := mkLet `z nat x t1;
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let l₁ := l.updateLet! nat x t2;
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let l₂ := l.updateLet! nat x t1;
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IO.println [t1, t2, t3, t5, t6, x₁, x₂, s₁, s₂, a₁, a₂, id₁, id₂, l₁, l₂];
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pure ()
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#eval main
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