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The Foundations of Empirical Knowledge The problem of induction is, roughly speaking, the problem of finding a way to prove that certain empirical generalizations which are derived from past experience will hold good also in the future. A Lifep. Autores parecidos Ludwig Wittgenstein In other words, the truths of logic and mathematics are analytic propositions or tautologies.
Henri Matisse 3 – Jeremy George, in [http: And the reason for positivismi 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. Marshall McLuhan 9 – For if there are any questions which science leaves it to philosophy to answer, a straightforward process of elimination must lead to their discovery.
Frases de Alfred Jules Ayer
To make our position clearer, we may formulate it in another way. The traditional disputes of philosophers are, for the most part, as unwarranted as they are unfruitful. 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 positivismp an object that it is perceived does carry the implication that it exists.
Let us call a proposition which records an actual or possible observation an experiential proposition. John Stuart Mill We infer the existence of events which we are not actually posutivismo, with the help of general principle. A Life by Ben Rogers, p.
But these principles must be obtained inductively. The criterion which we use to test the genuineness of apparent statements of fact is the criterion of verifiability. Willard Van Orman Quine 6. And this is by no means so difficult a task as the history of philosophy would lead one to suppose. I am using it here in such a way that to say llgico an object that it aysr perceived does not entail saying that it exists in any sense at all.
And, consequently, any attempt to base a deductive system on propositions which describe what is immediately given is bound to be a failure. The surest way to end them is to establish beyond question what should be the purpose and method of a philosophical enquiry.
There are only two ways of positivismp this problem on the assumption that it is a genuine problem, and it is easy positiviemo see that neither of them can lead to its solution. I am using the word “perceive”. 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.
Maksim Litvinov 1 – By mere deduction from what is immediately given we cannot advance a single step beyond. Then we may say that it is the mark of a genuine factual proposition, not that it should be equivalent to an experiential proposition, positividmo any finite number psitivismo 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.
Frases de Alfred Jules Ayer.
Frases de Alfred Jules Ayer (19 citações) | Citações e frases famosas
As Hume conclusively showed, no one event intrinsically points to any other. And this is a perfectly correct and familiar usage of positivismmo word. The principles of logic and mathematics are true simply because we never allow them to be anything else. It is as if I had written “Stealing money!!
I’m afraid I’m going to have to revise all my various books and opinions.