Lecture notes 2 -- Sets
... NOTE 1: We sometimes want to indicate that a set A is a subset of B, but di↵erent from it. If that is the case, then we say that A is a proper subset of B. Some texts use two di↵erent symbols to indicate the property of being a subset, and the property of being a proper subset. More specifically, if ...
... NOTE 1: We sometimes want to indicate that a set A is a subset of B, but di↵erent from it. If that is the case, then we say that A is a proper subset of B. Some texts use two di↵erent symbols to indicate the property of being a subset, and the property of being a proper subset. More specifically, if ...
