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Results for: 'Logic Project 3'
universal derivation PHIL013AB
A video on the Universal Derivation rule for predicate proofs, a rule for doing proofs where the SHOW line begins with Ax.
negated quantifier proofs PHIL013AB
A video on how to do proofs with negated quantifiers. Introduces two new rules, ~AO and ~EO, and discusses how to do proofs where you need to SHOW negated quantifiers (you have to do ID).
proofs vI double negation double arrow PHIL013
A video of just over six minutes about doing proofs with four new rules: or in, double negation, and double arrow in and out.
conditional derivation proofs PHIL 013C
A nine-minute video about conditional derivation, a new kind of rule. Listen closely for a special appearance from a squeaky raccoon.
A video about how to do proofs where you write down SHOW statements that don't come from any particular derivation rule.