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Results for: 'predicate logic'
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relational categoricals PHIL013
A video about translating relational categoricals, sentences where one or more categories are joined by a relation, such as "Some people love all cats."
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A video about doing proofs, introducing how to do direct derivations, and the &I and &O rules.
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conditional truth table PHIL013AB
A five-minute video explaining why the truth table for the conditional is the way it is.
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truth table calculation PHIL 013AB
An eight-minute video about how to calculate a truth table for a complex statement.
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truth table applications PHIL 013AB
An eleven-minute video on the things you can do with truth-tables. Covers tautology/contradiction/contingent, implication and equivalence, and argument validity.
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sentential translations 1 PHIL013AB
A ten-and-a-half-minute video about how to do translations in sentential logic, using the basic connectives and phrases like "neither" and "unless."
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complex translations PHIL013AB
A four-minute video on how to do complex translations involving more than two subsentences.
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Introduction to proofs PHIL 013AB
A video on what proofs are, which explains the concept of simple derivation, and how to do proofs with one proof rule, Modus Ponens.
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proofs with modus tollens and wedge out PHIL013AB
A video explaining two proof rules, modus tollens and wedge out, which can be used in proofs for PHIL013.