Suppose that f: A → R is continuous at a number a E A with f(a) > 0. Show that there exist numbers L and 8 such that f(x) > L for every x = N(a; 6)n A. (Here, N(a; 6) denotes the open interval/neighborhood (a - 6, a + 8).)

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Suppose that f: A → R is continuous at a number a E A with f(a) > 0. Show
that there exist numbers L and 8 such that f(x) > L for every x = N(a; 6) A. (Here,
N(a; 6) denotes the open interval/neighborhood (a - 8, a + 8).)
Transcribed Image Text:Suppose that f: A → R is continuous at a number a E A with f(a) > 0. Show that there exist numbers L and 8 such that f(x) > L for every x = N(a; 6) A. (Here, N(a; 6) denotes the open interval/neighborhood (a - 8, a + 8).)
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