Someone else proposed (a) (b) and (d) as the case. If only (a) and (d) are correct in your opinion, do you also subscribe to the correspondence theory of truth, that the truth of a proposition means the proposition corresponds to some state of affairs in reality? What is your notion of truth? Michael.
Date: Tue, 23 Sep 2014 12:03:34 +0200 Subject: Re: [agi] Logical Conflation From: [email protected] To: [email protected] Hi PM, I am not a logician but here's my take: short story, the answers are (a) and (d). I think you are confusing propositions with entities. A proposition is, by definition, something that entails a truth value. P is a proposition. "P is false" is also a proposition, usually written ~P. "P exists" is also a proposition, but I would say it's meaningless. Consider the proposition A = "my dog is a german shepard". What does it mean to say that A exists? On the other hand, the proposition B = "my dog exists" can be true or false. CheersTelmo. On Tue, Sep 23, 2014 at 5:28 AM, Piaget Modeler via AGI <[email protected]> wrote: Logic seems to conflate many notions. I'm trying to disentagle these meanings. Two statements: P #1(not P) #2 What does statement #1 mean? P is true (a) P exists (b) something else (c) What does statement #2 mean? P is false (d)P does not exist (e) something else (f) Aren't these statements along two different dimensions (viz. truth, existence)? If (c) or (f) then what is the something else? Kindly advise. ~PM AGI | Archives | Modify Your Subscription AGI | Archives | Modify Your Subscription ------------------------------------------- AGI Archives: https://www.listbox.com/member/archive/303/=now RSS Feed: https://www.listbox.com/member/archive/rss/303/21088071-f452e424 Modify Your Subscription: https://www.listbox.com/member/?member_id=21088071&id_secret=21088071-58d57657 Powered by Listbox: http://www.listbox.com
