As you may have noticed, above you will find words for "One of the three rewrite rules of lambda calculus, in which a bound variable of a lambda term is replaced by another variable across its entire scope. So if there is a lambda term of the form (πx.t) and it is desired to have x replaced with y, then the rewritten lambda term would have the form (πy.t[y/x]) where t[y/x], "t with y instead of x", has had all free instances of x in t replaced with y.". Hover the mouse over the word you'd like to know more about to view its definition. Click to find a better fitting word. Finally, thanks to ChatGPT, the overall results have been greatly improved.