In a chain of equalities/inequalities, or equalities/containments: $$\begin{align*} A & = B\\ & \subsetneq C\\ & = D \end{align*}$$ to which element is the last part refering to? In other words, is $D = A$?
2026-05-16 22:53:36.1778972016
In a chain of equalities/inequalities, is each line referring to the previous one?
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