Results for: 'PHIL013A'
DD, &O, and &I proofs
A video about doing proofs, introducing how to do direct derivations, and the &I and &O rules.
PHIL 013A/B: Validity
An eight-minute screencast on the concept of validity and other basic concepts in logic.
PHIL 013A/B: What is Logic?
A short (approx. 4 minutes) introduction to what logic is and what we'll be covering this semester.
complex translations PHIL013AB
A four-minute video on how to do complex translations involving more than two subsentences.
spontaneous show proofs PHIL013AB
A video on how to do proofs where you write down SHOW statements that don't come from specific derivation rules.
truth table calculation PHIL 013AB
An eight-minute video about how to calculate a truth table for a complex statement.
A video about translating categorical sentences that have complex subjects or predicates.
categorical translations PHIL013AB
A video on the four basic forms of categorical translations: All, some, no, not all/some not.
conditional derivation proofs PHIL 013AB
A nine-minute video about conditional derivation, a new kind of rule. Listen closely for a special appearance from a duck.