If $A,B$ are two sets in a space $X$, can I define (in a way similar to the operation of implication in logic) $A\subseteq B$ as $(X\setminus A)\cup B$, where $\setminus$ denotes the operation of set difference?
2026-04-12 05:52:51.1775973171
Question on the operation of set inclusion
44 Views Asked by user60264 https://math.techqa.club/user/user60264/detail AtRelated Questions in ELEMENTARY-SET-THEORY
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