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xXMarcelieXx:
How do i know the negation is true or false? I did the negation and symbolic form
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xXMarcelieXx:
@mhchen
xXMarcelieXx:
I am having trouble determining if its false or true
mhchen:
Careful, it went from 5x + 3 = 7 to 5x + 7 = 7 They aren't the same The second one doesn't seem to be false. \[\neg (\exists x \in A)[P(x)] = (\forall x \in A) \neg [P(x)] \]
xXMarcelieXx:
oh okay, then it must be true for that one
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xXMarcelieXx:
@mhchen
mhchen:
Yeah looks right
xXMarcelieXx:
ty ;o
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