Asked by susan

Does the diagram define a function from A to B? Why or
why not?
A B

Al
Mary Abe Hall
Sue
Bob Jesse hall
Liz


arrow from Al to Abe
arrow from Mary to Jesse
arrow from sue to jesse
arrow bob to Abe
arrow from Liz to Jesse
Answered by Steve
yes, since each member of A maps to a unique member of B.

(I'm assuming that each arrow points from a member of A to a member of B!)
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