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author ryokka
date Wed, 12 Feb 2020 17:55:00 +0900
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pushOnce : Meta @$\rightarrow$@ Meta
pushOnce m = M.exec pushSingleLinkedStackCS m

popOnce : Meta @$\rightarrow$@ Meta
popOnce m = M.exec popSingleLinkedStackCS m

push-pop-type : Meta @$\rightarrow$@ Set@$\_{1}$@
push-pop-type meta =
    M.exec (M.csComp  (M.cs popOnce) (M.cs pushOnce)) meta @$\equiv$@ meta