Category Archives: logic

Goodman vs. Falsifiability

Here are some new thoughts and arguments concerning the problem of induction. More than once, I’ve come across the argument that Goodman’s “new” problem of induction can be solved by appealing to degrees of falsifiability. Recently, I came across the … Continue reading

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Does Science Presuppose the Existence of Regularity in Nature?

A popular criticism of Popper’s scientific method is that he “smuggled induction in through the back door.” Contrary to claims of having done away with it altogether, Popper’s proposed method of science actually presupposes induction. Therefore, critics argue, Popper failed … Continue reading

Posted in logic, science | 23 Comments

Critical Rationalism vs. Inductive and Subjective Interpretations of Probability

So I am trying to understand the critical rationalist arguments against the inductive and subjective interpretations of probability. I am not all that familiar with the matter, and so I have likely made some elementary mistakes — feedback is appreciated. … Continue reading

Posted in epistemology, logic | 74 Comments

A Pancritical Paradox?

In Retreat to Commitment, Bartley characterises a pancritical rationalist as one who, holds all his positions, including his most fundamental standards, goals, and decisions, and his basic philosophical position itself, open to criticism; one who protects nothing from criticism by … Continue reading

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Why is the study of deduction important to critical rationalism?

This is a response to a post that was made last May in this blog by Elliot and can be found here. I’m making this a post as opposed to a comment in an attempt to renew interest in this … Continue reading

Posted in logic | 28 Comments

Review: Popper, Otto Selz and the Rise of Evolutionary Epistemology by Michel ter Hark

“Popper, Otto Selz and the Rise of Evolutionary Epistemology” by Michel ter Hark is historically interesting and philosophically provocative. Continue reading

Posted in biology, epistemology, evolution, logic, science | 61 Comments

You Tube 1

I have made some You Tube videos on critical rationalism, probability and logic.

Posted in epistemology, logic | 6 Comments

Popper on epistemological naturalism

This is a quote from Popper in Logic of Scientific Discovery, Section 10: This view, according to which methodology is an empirical science in its turn—a study of the actual behaviour of scientists, or of the actual procedure of ‘science’—may be described … Continue reading

Posted in epistemology, logic, quote, science | 1 Comment

Criticism of Salmon on Popper

Wesley Salmon wrote a critique of critical rationalism in which he claimed this it could not explain why it is rational to use the predictions of scientific theories to help us make decisions. First, note that Salmon does not and … Continue reading

Posted in epistemology, logic, science | 68 Comments

Karl Popper on logic of falsification

The falsifying mode of inference here referred to — the way in which the falsification of a conclusion entails the falsification of the system from which it is derived — is the modus tollens of classical logic. It may be … Continue reading

Posted in logic, science | 1 Comment