2/5/08 10Software
Hausman[2007] Logic and Philosophy Chapter 9
There also is a rule for adding a Universal Quantifier. This permits the step illustrated by the following proof fragments.
2/5/08 10Software
Hausman[2007] Logic and Philosophy Chapter 9
To understand the concepts of scope, free, bound. To meet substitution and a simplified version of the rule for removing a Universal Quantifier.
6/19/09
[This has been done in the downloadable application, but the principles apply to the applet version also.]
6/19/09
6/19/09
[This has been done in the downloadable application, but the principles apply to the applet version also. This video also calls the Quiz, 'Quiz 4'.]
6/19/09
12/25/06
This video illustrates use of the downloadable application (and the symbol ∧ for 'and' and (∀x) for the universal quantifier, some systems use (x) for this). But, what the film depicts and explains is equally good if you happen to be using the web pages applets (or different symbols for 'and' and the universal quantifier).
6/18/07 10 Software
To learn how to use the Universal and Existential Quantifiers in symbolizing propositions.
Hausman[2007] Logic and Philosophy Chapter 7
In Predicate Logic there are two new logical connectives, the Universal Quantifier (x) and the Existential Quantifier (∃x). These are used for symbolizing certain English constructions (they also have their own rules of inference and their own semantics, which we will learn about later).