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→Quantifiers
===<translate>Quantifiers</translate>===
===<translate>Quantifiers</translate>===
*Membership: represented by the symbol <math>\in </math> (belongs), - for example the number 13 belongs to the set of odd numbers <math>\in </math> <math>13\in Odd </math>
*<translate>Membership</translate>: <translate>represented by the symbol <math>\in </math> (belongs), - for example the number 13 belongs to the set of odd numbers <math>\in </math> <math>13\in Odd </math></translate>
*Non-membership: represented by the symbol <math>\notin </math> (It does not belong).
*<translate>Non-membership</translate>: <translate>represented by the symbol <math>\notin </math> (It does not belong)</translate>
*Inclusion: Represented by the symbol <math>\subset</math> (is content), - for example the whole <math>A</math> it is contained within the larger set <math>U</math>, <math>A \subset U</math> (in this case it is said that <math>A</math> is a subset of <math>U</math>).
*<translate>Inclusion</translate>: <translate>Represented by the symbol <math>\subset</math> (is content), - for example the whole <math>A</math> it is contained within the larger set <math>U</math>, <math>A \subset U</math> (in this case it is said that <math>A</math> is a subset of <math>U</math>)</translate>
*Universal quantifier, which is indicated by the symbol <math>\forall</math> (for each).
*<translate>Universal quantifier</translate>, <translate>which is indicated by the symbol <math>\forall</math> (for each)</translate>
*Demonstration, which is indicated by the symbol <math>\mid</math> (such that)
*<translate>Demonstration</translate>, <translate>which is indicated by the symbol <math>\mid</math> (such that)</translate>
===<translate>Set operators</translate>===
===<translate>Set operators</translate>===