Get this from a library! El positivismo lógico. [A J Ayer; L Aldama; U Frisch; C N Molina; et al]. Alfred Jules Ayer El positivismo Lógico. 2 likes. Book. Buy Positivismo lógico, el by Alfred Julius Ayer, L. Aldama (ISBN: ) from Amazon’s Book Store. Everyday low prices and free delivery on eligible.

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Willard Van Orman Quine 6. And this is a perfectly correct and familiar usage of the word. Jeremy George, in [http: The Foundations of Empirical Knowledge For if there are any questions which science leaves it to philosophy to answer, a straightforward process of lositivismo must lead to their discovery.

The traditional disputes of philosophers are, for the most part, as unwarranted as they are unfruitful. As Hume conclusively showed, no one event intrinsically points to any other.

And, consequently, any attempt to base a deductive system on propositions which describe what is immediately given is bound to be a failure. The problem of positivismp is, roughly speaking, the problem of finding a way to prove that certain empirical generalizations which are derived from syer experience will hold good also in the future.

Maksim Litvinov 1 – If there is thought to be a difficulty here, it is perhaps because there is also a correct and familiar usage of the word “perceive”, in which to say of an object that it is perceived does carry the implication that it exists. I’m afraid I’m going to have to revise all my various books and opinions. The principles of logic and mathematics are true simply because we never allow them logicl be anything else.


In other words, the truths of logic and mathematics are analytic propositions or tautologies. A Life by Ben Rogers, p.

It is as if I had written “Stealing money!! And the reason for this is that we cannot abandon them without contradicting ourselves, without sinning against the rules which govern the use of language, and so making our utterances self-stultifying.

Frases de Alfred Jules Ayer. I am using the word “perceive”. The criterion which we use to test the genuineness of apparent statements of fact is the criterion of verifiability.

The surest way to end them is to establish beyond question what should be the purpose and method of a philosophical enquiry. But these principles must be obtained inductively. There are only aysr ways of approaching this problem on the assumption that it is a genuine problem, and it is easy to see that neither of them can lead to its solution.

Henri Matisse 3 – John Stuart Mill By mere deduction from what is immediately given we cannot advance a single step beyond.

Frases de Alfred Jules Ayer

Marshall McLuhan 9 – We say that a sentence is factually significant to any given person, if, and only if, he knows how to verify the proposition which it purports to express — that is, if he knows what observations would lead him, under certain conditions, to accept the proposition as being true, or reject it as being false.


To make our position clearer, we may formulate it in another way. And this is by no means so difficult a task as the history of philosophy would lead one to suppose. We infer the existence of events which we are not actually observing, with the help of general principle.

Frases de Alfred Jules Ayer (19 citações) | Citações e frases famosas

Autores parecidos Ludwig Wittgenstein I am using it here in such a way that to say of an object that it is perceived does not entail saying that it exists in any sense at all.

Positivismp us call a proposition which records an actual or possible observation an experiential proposition. Then we may say that it is the mark of a genuine factual proposition, not that it should be equivalent to an experiential proposition, or any finite number of experiential propositions, but simply that some experiential propositions can be deduced from it in conjunction with certain other premises without being deducible from those other premises alone.

A Lifep.