3.1 Definition of a Group
... that has an identity element, and which includes inverses for each of its elements. The precise statement is given in Definition 3.1.4; you must pay careful attention to each part, especially the quantifiers (“for all”, “for each”, “there exists”), which must be stated in exactly the right order. Fr ...
... that has an identity element, and which includes inverses for each of its elements. The precise statement is given in Definition 3.1.4; you must pay careful attention to each part, especially the quantifiers (“for all”, “for each”, “there exists”), which must be stated in exactly the right order. Fr ...