Decide which form of valid or invalid reasoning is used: T…
Decide which form of valid or invalid reasoning is used: This gem is either a diamond or it is a zircon. This gem is not a zircon. This gem is a diamond. a) valid- modus ponens b) valid – modus tollens (law of contraposition) c) valid- disjunctive syllogism d) valid- transitivity e) invalid- reasoning from the converse f) invalid- reasoning from the inverse