Step * 1 1 of Lemma hdf-until-halt-right


1. Type
2. Type
3. hdataflow(A;B)@i
⊢ hdf-halted(hdf-until(X;hdf-halt())) hdf-halted(X)
BY
(RepUR ``hdf-until`` THEN RecUnfold `mk-hdf` THEN Reduce THEN AutoSplit) }


Latex:



1.  A  :  Type
2.  B  :  Type
3.  X  :  hdataflow(A;B)@i
\mvdash{}  hdf-halted(hdf-until(X;hdf-halt()))  =  hdf-halted(X)


By

(RepUR  ``hdf-until``  0  THEN  RecUnfold  `mk-hdf`  0  THEN  Reduce  0  THEN  AutoSplit)




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