Emil O. W. Kirkegaard blog
Consider this set of propositions: P1. The sentence “The current king of France is bald.” expresses a proposition. P2. The sentence “The current king of France is not bald.” expresses a proposition. P3. The propositions expressed by the sentences “The current king of France is bald.”and “The current king of France is not bald.” are…
Continue Reading“[W]hat follows from a true premiss must be true” (The Problems of Philosophy, p. 60, link) Wrote Russell as an example of a principle of logic that is more self-evident than the inductive principle. If we were to formalize this we would perhaps write it like this: E1. □[([∀P][Q∧Q⇒P])→P]1 Or perhaps just just in propositional…
Continue ReadingIn Longman’s texts Talking about the present, and Talking about the Past it is claimed that some verbs cannot be used in the present and past progressive. But they can. Here is the list of verbs it is calimed that cannot be used: (to) be, have, see, believe, like, agree, know, love, disagree, recognize, hate,…
Continue ReadingWhat is the present progressive? It is a sentence form. Longman Dictionary of Comtemporary English explains it like this: “You make the present progressive by using a form of the verb be in the present tense, followed by the main verb with an ing ending, for example l am waiting, she is coming.” Later in…
Continue ReadingWikipedia on Jacqui Dean. “Jacqueline Isobel (Jacqui) Dean (born 13 May 1957 in Palmerston North) is a New Zealand politician and the current Member of Parliament for the Waitaki electorate.” (skip) “Party pills Jacqui Dean campaigned for the banning of the sale of “party pills”, namely Benzylpiperazine (BZP), over which Associate Health Minister Jim Anderton…
Continue ReadingWikipedia om bogen. “This seems plainly absurd; but whoever wishes to become a philosopher must learn not to be frightened by absurdities.” p. 10. Download: Bertrand Russell – The Problems of Philosophy
Continue ReadingI have encountered the following problem a couple of times. This problem is this: When formalizing something in predicate logic, the predicate uses propositions as variables.1 We may refer to this as the predicate acting upon the variable. The predicate is a function similar to functions in mathematics like “F(x) = x4”. Predicates were also…
Continue ReadingIt is clear that when we use the phrase “It is possible that…” it is not in all cases used to express mere alethic possibility, that is, “It is logically possible that p.” [◊P] Other times it is used to express what is called epistemic possibility, that is, “For all we (or I) know p…
Continue ReadingI could write a long detailed review but it is entirely unneeded. This book is without doubt the most enlightening book that I have ever read about logic, and it doesn’t even cover predicate logic! So that says a lot. It is recommended for anyone who wonders if talk of possible worlds is really worth…
Continue ReadingRapidshare link (updated as of 21. September 2009) Follow the link and download these books I will update this post if I can figure out a way to avoid having to write off all the file names or copy them individually. If someone has more books in PDF format, just email me them and I’ll…
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