UCSB Finding Subsets of Functions Mathematical Exercise Example
Question Description
The photo is ok, pdf is better.
it’s a higher math mathematics class
detail in file
(Suppose that f : X ! Y is a function and that At is a subset of Y for each t 2 R.
Show that
f??1
[
t2R
At
!
=
[
t2R
f??1(At):
7)
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