9. True/False Review and Chapter Summary Use your knowledge of the definitions of validity, soundness, strength, and cogency to determine which of the following statements are true. Check all that apply. A valid deductive argument may have true premises and a false conclusion To have a cogent inductive argument, the premises must not ignore a piece of evidence that would require a different conclusion. of an argument has true premises and a false conclusion, then the argument must be weak. Al deductive arguments are either completely valid or completely invalid. An uncogent Inductive argument must have at least one false premise. It is proper to call an argument true or false. A cogent inductive argument must be strong No sound deductive arguments are invalid arguments. If you do not know the truth values of an inductive argument's premises, then the argument must be uncogent. A weak inductive argument cannot be cogent. A strong inductive argument may have premises and a conclusion that are all raise If you do not know the truth values of an inductive argument's premises, you can still determine whether the argument is inductively strong To test an inductive argument for strength, the first step is to determine whether the premises are all actually true If a deductive argument has false premises and a false conclusion, then the argument could be valid If an argument is inductively strong, then it is also deductively valid