Function – expanding

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Mgr. Lukáš Macek

Published on Sep 21, 2024
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1) Cartesian product of sets definition graphic representation 2) Binary relation between sets A, B binary relation on set A example 1: relation less than or equal to example 2: relation equal to 3) Mapping between elements of sets A, B definition uniqueness of y for given x and functional value 4) Function image notation: a) difference between mapping of a set and mapping from a set b) difference between mapping into a set and mapping onto a set 5) Domain of definition 6) Domain of values ​​7) Graph of a function 8) Special types of functions: function on (surjective) function simple (injective) function mutually unique (bijective) 9) Connection of bijective functions with cardinality of sets example on finite sets {a, b, c, d, e}, {1, 2, 3, 4, 5} example on infinite sets N, Z 10) Summary

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