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what does this equation mean? I´m really bad in reading those, so if somebody explained it, I would really appreciate.

$f_i(x,y)\ge 0\quad\forall i\{0,1,2\}$

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    totally agree, my bad.2012-01-19

1 Answers 1

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The symbol "$\forall$" means "for all" or "for every".

"$\forall i \in \lbrace 0,1,2 \rbrace$" means "for all $i$ in the set $\lbrace 0,1,2 \rbrace$".

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    And is there a prounounciation for it or if I see ∀α.r should I read that as "for all alpha dot r"?2016-02-07