For each of the following definitions, (a) rewrite the definition using math symbols wherever possible.; (b) write the negation of the definition using math symbols wherever possible; (c) write the negation of the definition in English.

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For each of the following definitions, (a) rewrite the definition using math symbols wherever possible.; (b) write the negation of the definition using math symbols wherever possible; (c) write the negation of the definition in English.

 

(1.1) A function f: A → B is open if and only if whenever U is an open subset of A, the image of U
under f, f (U), is an open subset of B.
(1.2) The collection of functions from R to R {f, f2, , fn} is uniformly continuous on compacta if
...
and only if for each compact subset K of R, and for every positive number e there exists a
positive number 8 such that if x and y are elements of K which differ in absolute value by less
than 8, then for each i E {1,2, ,n} the function values fi(x) and f;(y) differ in absolute value
...
by less than e.
Transcribed Image Text:(1.1) A function f: A → B is open if and only if whenever U is an open subset of A, the image of U under f, f (U), is an open subset of B. (1.2) The collection of functions from R to R {f, f2, , fn} is uniformly continuous on compacta if ... and only if for each compact subset K of R, and for every positive number e there exists a positive number 8 such that if x and y are elements of K which differ in absolute value by less than 8, then for each i E {1,2, ,n} the function values fi(x) and f;(y) differ in absolute value ... by less than e.
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