This program provides an introduction to logic to the level of Sentential and Predicate Calculus.
The focus of the program is on arguments and the question of whether they are valid. Arguments have the form <list of premises> ∴<conclusion>. An argument is valid if and only if it is not possible for all its premises to be true and its conclusion false at one and the same time; an argument which is not valid is invalid.
Tutorials 11 to 25: predicate logic, using the Hausman syntax.
Tutorials 1 to 10: sentential logic, using the Hausman syntax.
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To become familiar with the new rules for predicate logic trees with identity.
It is possible to use trees with formulas containing identity. Two new rules are needed.
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A. Hausman, H.Kahane, P.Tidman, [2007] Logic and Philosophy Chapter 12
Hausman [2007] has a number of exercises. Many of them you will be able to do in the Applet below.
Here are a few hints
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