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MH ArgSchemes Overview.cmap argument revision schemes.cmap categorical-logic.cmap complete induction.cmap conditional syllogism.cmap conflict schemes.cmap deduction.cmap disjunctive not-both xor syllogism.cmap either or truth tables.htm equivalence.cmap LAM_conventions-and-key_3.cmap link to argument schemes in propositional logic.url link to categorical logic lessons.url link to inferences in categorical logic.url link to LAM conventions.url link to more on equivalence.url modus ponens.cmap modus ponens tollens truth table proof.htm modus tollens.cmap objection schemes.pdf objection-schemes.cmap objection-schemes-materials.cmap perfect authority and analogy.cmap reductio-ad-absurdum.cmap see Rescher, Internet Encyclopedia of Philosophy.url