Question

the symbol for correspondence is ​

Answer 1

Answer: Correspondence is denoted by a triple (R,A,B)

and one may write aRb or R(a,b) in place of (a,b)∈R. Instead of "correspondence" the term "binary relation" , or "relation between setsrelation" is sometimes used (in the general case where A and B need not coincide).

Step-by-step explanation:

Answer 2

Answer:

≅

Step-by-step explanation:

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