An Introduction to Logic and Scientific Method, Volumen 10

affirmative alternative analysis angles antilogism Archimedes argument Aristotle arithmetic mean assert assumptions axioms believe body called canon categorical propositions categorical syllogism cause Chap conclusion connected consequences contradictory contrapositive deductive definiens definition denoted determine discover discussion disjunctive distinct distributed elements employed enthymeme equivalent evidence examine example expression fact factors fallacy false falsity formal frequently geometry gism Hence Herodotus human hypothesis hypothetical syllogism imply induction inference inquiry instances invariable knowledge l-class laws logical principles major premise mathematicians mathematics meaning measure method of agreement moral nature negative non-Euclidean geometry objects observed plane possible postulate predicate probability proof properties propo prove question reader reason regarded relation rules scientific method sense sitions social subject matter Suppose syllogism symbols theorems theory things tion triangle true truth universal proposition valid verifiable virtue weight words