Mon, 15 Aug 1994 18:38:38 +0200 ZF/List, ex/Brouwer,Data,LList,Ntree,TF,Term: much simplified proof of _unfold
lcp [Mon, 15 Aug 1994 18:38:38 +0200] rev 529
ZF/List, ex/Brouwer,Data,LList,Ntree,TF,Term: much simplified proof of _unfold
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