Minor bug correction in Function. Non terminating Function e.g.  Function f (x:A) { wf R x} := f x. was not accepted. 
Minor bug correction in Function. Non terminating Function e.g. 
Function f (x:A) { wf R x} := f x. was not accepted. 



git-svn-id: 44dc50bdcc0f5d1a212c497508dc9452e0b35e2b@9943 85f007b7-540e-0410-9357-904b9bb8a0f7

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