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Results for: 'PHIL013A'

9:11

connectives and truth value calculation PHIL013AB

By: mcweiner

A nine-minute video on the connectives we will use in statement logic, and how to calculate truth-values with those connectives.

5:25

universal derivation PHIL013AB

By: mcweiner

A video on the Universal Derivation rule for predicate proofs, a rule for doing proofs where the SHOW line begins with Ax.

4:10

predicates and constants PHIL013AB

By: mcweiner

A short video on predicate logic, introducing constants and predicate letters.

7:42

predicate proofs existential out PHIL013AB

By: mcweiner

A video on how to use the rule EO (existential out) in proofs in predicate logic.

7:25

proofs with modus tollens and wedge out PHIL013AB

By: mcweiner

A video explaining two proof rules, modus tollens and wedge out, which can be used in proofs for PHIL013.

6:13

proofs vI double negation double arrow PHIL013AB

By: mcweiner

A video on proof rules for wedge in, double negation, and double arrows. NOTE: if you're using captions, there is a possibility that the software may be displaying double arrows in the captions as single arrows. I wrote [double arrow] in the capti...