Logic 1.4 True/False

All strong inductive arguments are equally strong.

False.

An argument based on signs could be deductively valid.

False.

An inductive argument cannot be both weak and uncogent.

False.

If a deductive argument is unsound, the argument's premises cannot all be true.

False.

If an argument is deductively valid and has premises that are all true, then the argument is cogent.

False.

If an argument is deductively valid, then at least one of its premises must actually be true.

False.

If an inductive argument is cogent, then it is also weak.

False.

In an invalid deductive argument, it is impossible for the premises to be true and the conclusion to be false simultaneously.

False.

Some inductive arguments are neither cogent nor uncogent.

False.

To check an argument's deductive validity, you should first ask whether the argument is sound.

False.

An invalid deductive argument may have a true conclusion.

True.

In a strong inductive argument with true premises, the conclusion may be false.

True.

Some valid deductive arguments are also unsound.

True.

To test a deductive argument for validity, you should begin by assuming that the premises are all true.

True.

You cannot tell the strength of an inductive argument solely from the truth values of the argument's premises and conclusion.

True.