All deductively valid arguments have true conclusions. All arguments can be analyzed as syllogisms. Strong inductive arguments are based on unbiased samples. All arguments that meet the A condition have true conclusions.
Some inductive arguments are deductive arguments.
By the principle of charity, any implicit premise is acceptable. Truth tables can be used to analyze inductive arguments. Appeals to authority are always fallacies. An acceptable premise must be more certain than the conclusion. Two logically equivalent sentences are both true or both false.