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I need to prove that this has an element of infinite order.

Do I use Frudenthal suspension theorem. Any hints on what to use to prove this?

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    Why do you *need* to prove this?2012-04-07
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    @Mariano, all of us here are just junkies of mathematics, in search of a fix... C'mon man, don't hold out on him like that!2012-04-08

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