Nuprl - Proof: finite indep sum card 1 1

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At: finite indep sum card 1 1

1. A : Type
2. B : Type
3. a :

4. b :

5. A ~

a
6. B ~

B) ~ (

By:	Rewrite by A ~ a

Generated subgoal:

1 (aB) ~ (ab)
1 step

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