from The American Heritage® Dictionary of the English Language, 4th Edition
- The symbol for the element phosphorus.
- abbr. Genetics parental generation
- abbr. Physics parity
- abbr. pass
- abbr. pawn (chess)
- abbr. Bible Peter
- abbr. petite
- abbr. Physics pressure
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The sixteenth letter of the basic modern Latin alphabet.
- n. symbol for phosphorus
- n. symbol for peta-
- n. IUPAC 1-letter abbreviation for proline
- n. probability
- n. The sixteenth letter of the English alphabet, called pee and written in the Latin script.
- n. The ordinal number sixteenth, derived from this letter of the English alphabet, called pee and written in the Latin script.
- n. park
- n. phone
- n. pager
- n. passenger
- n. Pawn.
- n. A "pure" form of an illegal drug, especially heroin.
- n. methamphetamine
- proper n. The set of all problems that are solvable in polynomial time by a deterministic Turing machine
Strictly speaking, If P then Q, ~P, therefore ~Q is invalid -- modus ponens is only valid if you affirm P; it's not if you deny it.
P(seems True|True)*P(True)+P(seems True|Lie)*P(Lie)
Typically such sentences are conditional sentences such as ˜if P then Q™, though Boethius also treats ˜P or Q™ as hypothetical, apparently because he thinks that disjunction can be translated in terms of a conditional sentence.
Thus, the claim ˜John's statement that P is true™ can be treated as equivalent to (say) ˜P, as John's statement said™.
P (~P/S) EU (~S), assuming that studying's increase in the probability of passing compensates for the effort of studying.
Necessarily P iff, according to the modal fiction, at all worlds, P*, where P* is the possible-worlds paraphrase of P.
P iff according to PW, P*. where “PW” is the fiction of possible worlds, P is any proposition, and P* is its possible-worlds
Others take it to be crucial for any modal interpretation that it also answer questions of the form: Given that a system possesses property P at time s, what is the probability that it will possess property P² at time
P (pr (A) = x) 0 where ˜P™ is the agent's subjective probability function, and ˜pr (A)™ is the assignment that the agent regards as expert.
In that event, ˜Anything is P if and only if it is P²™ comes out true with respect to the actual world but not necessarily true.