Nuprl - Proof: union to sigma wf

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At: union to sigma wf

A,B:Type. union_to_sigma

(A+B)

(i:

if i=

A else B fi)

By:	Def of union_to_sigma

Generated subgoals:

None

About:

IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html