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# Predicate logic translation - help needed

 Posts: 1,120 Add as FriendChallenge to a DebateSend a Message 9/21/2012 12:34:29 AMPosted: 5 years agoAt 9/20/2012 6:40:31 PM, Malac wrote:I hope this is the right spot for this. I've requested for info from someone who's been helpful in the past, but bring it here for further support.--HERE'S THE PROBLEM--EX 3:a) "All women admire cats"andb) "All women love to dance"3.a How are both general subjects "women" and "cats" different than if we used instead "Melissa" and "Mr. Pebbles"? [/quote]You would have to represent "Mr. Pebbles" differently than "cats".Are we using the universal quantifier in the general sentence to state that "all of something" RELATES TO "all of something?" And is the term "cats" implicitly universal VS if we had instead added "some" cats?If I recall correctly from my Logic course (it's been awhile), unless it's specified as being "all", then we assume that it is only "some".Also, when relating a subject to something else, does it necessary have to be a SET or CLASS OF INDIVIDUALS?It depends on what you're doing. If categorical syllogisms, yes. Otherwise, no.3.b. My confusion lies in how to pick out whether "love to" is a 2_place predicate or not. I'm not even sure if "dance" can be an entity to be used IF "love to" is by itself relational, as they may be dependent on each other to be only a monadic predicate, and I can't imagine "dance" itself representing individuals.One good way to distinguish this is to change actions into entities performing actions. For example:"All frogs jump" you can modify this to "All frogs are things that jump"or in your case:"All women are people who like to dance""All women are people who admire cats"This will make it easier to identify the Subjects and predicates. Hopefully this helps.
 Posts: 1,120 Add as FriendChallenge to a DebateSend a Message 9/21/2012 12:41:31 AMPosted: 5 years agoI forgot to mention that you can also turn an individual entity into a category by adding the phrase "all thing identical to..." in front of it. For instance if you wanted to turn Mr.Pebbles into a category you could say:"All things identical to Mr.Pebbles are cats"And since only one thing is identical to Mr.Pebbles it is both a category and an individual entity. This should help when you're doing categorical syllogisms.
 Posts: 3 Add as FriendChallenge to a DebateSend a Message 9/21/2012 5:56:27 PMPosted: 5 years agoAt 9/21/2012 12:41:31 AM, Polaris wrote:I forgot to mention that you can also turn an individual entity into a category by adding the phrase "all thing identical to..." in front of it. For instance if you wanted to turn Mr.Pebbles into a category you could say:"All things identical to Mr.Pebbles are cats"And since only one thing is identical to Mr.Pebbles it is both a category and an individual entity. This should help when you're doing categorical syllogisms.Thanks man. Using this info and other, I managed to mostly "figure" out my confusion ha.