\[\[\[\[\[\[\[\[\[\[\[\[\[\[\[\[\[\[\[\[\axjustifies\trans{\StmPush~\texttt{"\textquotedblright{}u\textquotedblright{}p\textquotedblright{}v\textquotedblright{}p\textquotedblright{}w\textquotedblright{}p\textquotedblright{}w\textquotedblright{}gh\textquotedblright{}v\textquotedblright{}g+\textquotedblright{}v\textquotedblright{}p\textquotedblright{}w\textquotedblright{}gt\textquotedblright{}w\textquotedblright{}p\textquotedblright{}w\textquotedblright{}g\textquotedblright{}v\textquotedblright{}gq\textquotedblright{}o\textquotedblright{}+\textquotedblright{}w\textquotedblright{}gq\textquotedblright{}v\textquotedblright{}gq\textquotedblright{}u\textquotedblright{}gq++\textquotedblright{}u\textquotedblright{}g+\textquotedblright{}w\textquotedblright{}gp\textquotedblright{}\textquotedblright{}pgx"}:\StmPush~\texttt{"u"}:\StmPut:\StmPush~\texttt{"v"}:\StmPut:\StmPush~\texttt{"w"}:\StmPut:\StmPush~\texttt{"w"}:\StmGet:\StmHead:\StmPush~\texttt{"v"}:\StmGet:\StmCat:\StmPush~\texttt{"v"}:\StmPut:\StmPush~\texttt{"w"}:\StmGet:\StmTail:\StmPush~\texttt{"w"}:\StmPut:\StmPush~\texttt{"w"}:\StmGet:\StmPush~\texttt{"v"}:\StmGet:\StmQuotify:\StmPush~\texttt{"o"}:\StmCat:\StmPush~\texttt{"w"}:\StmGet:\StmQuotify:\StmPush~\texttt{"v"}:\StmGet:\StmQuotify:\StmPush~\texttt{"u"}:\StmGet:\StmQuotify:\StmCat:\StmCat:\StmPush~\texttt{"u"}:\StmGet:\StmCat:\StmPush~\texttt{"w"}:\StmGet:\StmPut:\StmPush~\texttt{""}:\StmPut:\StmGet:\StmExec}{\Nil}{\left(\texttt{""}:\texttt{"c$t$"}:\Nil,\emptyset\right)}{\Nil}{\texttt{"$t^R$c"}:\Nil}{\left(\Nil,\emptyset\right)}\using{\rule{assumption}{}}\] 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\justifies{}\trans{\StmExec}{\Nil}{\left(\texttt{"\textquotedblright{}c\textit{q}($t$)\textquotedblright{} 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