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It is stated that the function f(x) = (x+1)/2 is a continous function from the open interval (-1,1) to itself.
Is it not the case that the function maps from (-1,1) to (0,1)? [[User:Salomonaber|Salomonaber]] ([[User talk:Salomonaber|talk]]) 00:13, 11 March 2020 (UTC)
:It doesn't claim (nor is it required) that the function is [[surjective]], so what's there is correct and appropriate. The example could have even arranged for a bijection, but I don't think it matters much either way. –[[User:Deacon Vorbis|Deacon Vorbis]] ([[User Talk:Deacon Vorbis|carbon]] • [[Special:Contributions/Deacon Vorbis|videos]]) 00:32, 11 March 2020 (UTC)
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