Nuprl Basics - Proof: sfa doc sexpr reverse wf 1 1 1 2

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At: sfa doc sexpr reverse wf 1 1 1 2

1. A : Type
2. Q : Sexpr(A)

Prop
3.

e:{e:Sexpr(A)| Q(e) }. Reverse(e)

Sexpr(A)
4. x1 : {e:Sexpr(A)| Q(e) }
5. {e:Sexpr(A)| Q(e) }

Reverse(x1)

Sexpr(A)

By:	BackThru: Hyp:3

Generated subgoals:

None

About:

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