Set2.1 setThe set is a term indicating a group of things and when it comes to any group, of course, what is in and what is not in the group, Set the pool in English refers to a group of English a, e, i, o, and u. Set the count of less than 10 refers to a group of numbers 1, 2, 3, 4, 5, 6, 7, 8, and 9. What's in it is called chet members (element or members).Writing setWriting set may 2. 1 writing sotbaep writing to all members of the distribution of members into wings brackets. Check {} and use a comma (,) between each Member such as: Set the count of less than 7 written by {1, 2, 3, 4, 5, 6,} The first set of alphabetic writing, rather than with Thailand 5. {., B, c, a, ฃ ฅ}2. write a dictated terms. Use a variable instead of a member of a set, write briefings properties of members as a variable, such as. {X | x is in the English language} to read that the set of x, where x is in English. {X | x is the first month and last month of the year} read on that set of x, where x is the first month and last month of the year. The "|" instead of the term by the. To write a set of members that point distribution (...) to indicate that there are other members that are commonly understood that there was nothing else in the set such as. {1, 2, 3, ..., 10} symbol. .. There is a 4, 5, 6, 7, 8 and 9 are members of the set. {Monday, Tuesday, Wednesday, ..., Sunday} symbol ... there Thursday. Friday and Saturday are members of. Symbol set In General, rather than by the set set with English letters to uppercase A, B, C, and, for example, instead of the members of the set with the lowercase letters such as a, b, c, for example, A = {1, 4, 9, 16, 25, 36} refers to A set of squares of first six-count number}A member of the setTo use the symbol "€" instead of the word that is a member or in such.A = {1,2,3,4}Is that 1 is a member of A, or in writing with A 1 €A? 3 is a member of A writing or A replacement with A 3 €.The word "ม่เป็น" or "not in" symbol "€" such as writing. 5 do not belong to A or is not in A burning instead of 5 €A. 7 is not appropriate or not in A chip kotong writing with A 7 €A.
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