PHL255H5 Lecture Notes - Lecture 6: Mendelian Inheritance, Anti-Realism, Libido
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_____ l l l o l the circle is p. Imagine there is a circle around p named q; when p is true, q is true. The square reflects all the ways the world could be. There"s no way of p being true and q being false. The conclusion is as credible as the premise, but you"re not getting any new information at all. P narrows things down more than q does. You can"t get to a scientific theory from observation by deduction. Because deduction throws away information: baconian induction. Because you"ve got credible starting points, the fact that your conclusion is less credible, is not bad because your conclusion may be credible. So, you"ve got various observation and somewhat less credible theory; but, the problem is that the theories that you get from baconian induction do not have non-observational terms, and most scientific theories have non-observational terms.
