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Results for: 'rules'
Movement is observed, copied, and passed on. It is learned, challenged, and changed by each generation. We are born movers and we are changed by the movement we make and the movement we see. Watching children move changes the way that I see moveme...
negation proof rules PHIL013AB
A video on rules for proofs with complex negations, like ~(P & Q), ~(P v Q), and ~(P -> Q).
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.
A video about doing proofs, introducing how to do direct derivations, and the &I and &O rules.
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.
proofs vI double negation double arrow PHIL013AB
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...