anonymous
  • anonymous
"Prove these logical equivalences, assuming that the domain is nonempty." "You will probably have to use a proof by cases on the two possible values of proposition" "∀yQ(y) and ∃yQ(y) respectively. This proof will use word arguments (not symbolic formula manipulation)." "(a) ∀x(∀yQ(y) → P (x)) ≡ ∀yQ(y) → ∀xP (x)"
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
if i expand this out ... i get .. Ax~AyQ(y) v P(x) for the left and then for the right i get ~AyQ(y) v AxP(x) for the right
anonymous
  • anonymous
then i continue expanding out and get Ax ( Ey~Q(y) v P(x) ) on the left and on the right i get ... Ey~Q(y) v AxP(x)
anonymous
  • anonymous
and then im STUCK Lol ...

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anonymous
  • anonymous
i got confused
anonymous
  • anonymous
looks like ascii
anonymous
  • anonymous
its discrete math
anonymous
  • anonymous
Ah.
anonymous
  • anonymous
Well, I can help you, but I'm a bit rusty. Give me some time, lol.
anonymous
  • anonymous
ok lol sorry no can do but watch
anonymous
  • anonymous
thanks!!! ive been struggling for 3 hours or more
anonymous
  • anonymous
When you type A you mean it to be a universal quantification, and E is an existential one, right?
anonymous
  • anonymous
yes!
anonymous
  • anonymous
im not sure if i factored in properly but if you need to know any rules or confirm any rules i think i can confirm some of them ..
anonymous
  • anonymous
pikachu didnt i tell u if it has nothing to do with calc i skip?
anonymous
  • anonymous
Oh, my bad. Also, gah, discrete math. >.< I know basic proofs, but never had a formal class in it.
anonymous
  • anonymous
actually you know what .. you dont even have to factor it out ... you just have to look at it and then .. somehow prove that it can be equivalent .. i just notice on either side theres a EyQ(y)
anonymous
  • anonymous
3 in the morning is not the time to be asking actually high level math problems, lol.
anonymous
  • anonymous
its ok Lol .. ive been working on it all day .. im kinda stumped lol
anonymous
  • anonymous
ill figure it out somehow lol thanks anyway

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