lgbasallote
Translate the statement "you cannot watch the movie if you are under 18 years old unless you are accompanied by your parents" into a logical expression
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sauravshakya
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If u r >=18 or Accompanied by your parents then
U can watch movie
lgbasallote
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that's not really a logical expression....
lgbasallote
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i assume this will be the start:
p: you can watch the movie
q: you are under 18
r: you are accompanied by your paretns
lgbasallote
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then what?
sauravshakya
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Not q or r then p
lgbasallote
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\(r \wedge q) \rightarrow p\)?
sauravshakya
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Well I am not familiar with those symbols
lgbasallote
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hmm seems it should be \[(q \wedge \neg r) \rightarrow \neg p\]
why?
swissgirl
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hmmmmm let me think abt this one
lgbasallote
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that would be splendid
swissgirl
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if you are under 18 years old and not accompanied by a parent then you can not watch the movie
p=under 18 years old
q=accompanied by a parent
r=unable to watch movie
lgbasallote
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mmhmm
swissgirl
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(p^~q)->r
lgbasallote
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should be (p^~q) -> ~r
swissgirl
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give me one more sec
I doubt its (p^q)->r
lgbasallote
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yeah...i just said what it is supposed to be
swissgirl
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ya so then its that
lgbasallote
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question is...why?
swissgirl
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if you are under 18 years old and not accompanied by a parent then you can not watch the movie
p=if you are under 18 years old
q=accompanied by a parent
r= can watch movie
lgbasallote
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....you're just repeating yourself...
swissgirl
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nope I changed what r symblizes
lgbasallote
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oh. so it's going to be (p ^ ~q) -> ~r
still i ask..why?
swissgirl
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which part is confusing?
Ok for starters I switched around the order of the sentence. I put the result which was cannot watch movie at the end of the sentence
So basically i rearranged the sentence so that the 2 conditions are in the beginning
unless accompanied by an adult is another way of saying not accompanied by an adult
lgbasallote
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main part is (p ^ ~q)
swissgirl
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I am not sure what is confusing you. The hard part is rearranging the sentence
lgbasallote
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i just said what was confusing me....
swissgirl
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okkk we need 2 conditions in order to not be able to go to the movie
1) under 18 years of age
2) not accompanied by a parent
Under 18 years of age is in a postive form p=under 18 years of age
Not accompanied by a parent is in a negative form ~q= not accompanied by parent
q=accompanied by parent
lgbasallote
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^ means and yes?
swissgirl
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So if you are under 18 years of age and NOT accompanied by a parent Then you can NOT watch the movie
(p^~q)=~r
^=and
lgbasallote
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hmm so 18 andnot accompanied by parent implies no watch?
swissgirl
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Correct
bahrom7893
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Actually no, under 18 and not accompanied implies no watch.
lgbasallote
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thanks
lgbasallote
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oh...yeah...bad wording
bahrom7893
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18 implies watch
lgbasallote
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under 18 implies bad dreams
bahrom7893
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under 18 implies music chatbox
swissgirl
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HAHAHAH LOL
swissgirl
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What happens if you frequent music chat when you are older than 18?