explanation: An argument cannot be both strong and weak . Either a set of premises will make a conclusion likely to be true or it will not. So, even though one argument can be stronger than another or weaker than another, a single argument will either be strong or else it will be weak.
Can an argument be strong but invalid?
It is important to keep in mind that just because an argument does have a possibly valid combination of premise-conclusion truth values (for example, true premises and true conclusion), it is not necessarily valid. It must also be logically strong. ... The argument’s form is invalid .
Is it possible to have an argument that is weak and Uncogent?
If an argument is strong and has only true premises, then it is cogent. If an argument is strong, then it is possible that its conclusion is false even if its premises are true. If an argument is weak, then it is uncogent . ... If an argument is uncogent, then it is weak.
What does it mean for an argument to be strong or weak quizlet?
Strong Inductive Argument . An inductive argument in which the truth of the premises really DOES prove that the conclusion is probably true. Weak Inductive Argument. An inductive argument in which the truth of the premises really does NOT prove that the conclusion is probably true.
Can a valid arguments be strong or weak?
When it comes to invalid arguments, you should know that they are unsound or weak. Valid arguments are known to be very sound when the premises is true. Arguments based on inductive reasoning can either be weak or strong. The weak argument is not convent but strong arguments are strong if only the premises is true.
What are the 4 types of arguments?
- Type 1: Deductive Arguments.
- Type 2: Inductive Arguments.
- Type 3: Toulmin Argument.
- Type 4: Rogerian Argument.
What is a weak argument?
A weak argument is a non-deductive argument that fails to provide probable support for its conclusion .
What is a good argument?
A good argument is an argument that is either valid or strong, and with plausible premises that are true, do not beg the question, and are relevant to the conclusion . ... “Since the conclusion of the argument is false, all its premises are false.” “The conclusion of this argument does not follow from the premises.
What are valid and invalid arguments?
Valid: an argument is valid if and only if it is necessary that if all of the premises are true, then the conclusion is true; if all the premises are true, then the conclusion must be true; it is impossible that all the premises are true and the conclusion is false. Invalid: an argument that is not valid .
What is an sound argument?
A sound argument is a valid argument that has true premises . A cogent argument is a strong non-deductive argument that has true premises. ... By that, we mean that, if the premises are true, then the conclusion would be given the appropriate support for also being true.
How do you know if an argument is cogent?
To say an argument is cogent is to say it is good, believable; there is good evidence that the conclusion is true . A weak argument cannot be cogent, nor can a strong one with a false premise(s). The concept of true premises sometimes bothers people.
What is validity of argument?
Validity, In logic, the property of an argument consisting in the fact that the truth of the premises logically guarantees the truth of the conclusion . Whenever the premises are true, the conclusion must be true, because of the form of the argument.
How do you say a weak argument?
There are a few ways in which an argument can be weak. It could be weak on its own merits (e.g. the facts are not substantial, or the logic is not entirely sound). In this case, the words tenuous, insubstantial, shaky, flimsy and others suggested here may be variously appropriate.
Why is an argument weak?
So a weak argument is one that fails either logically or the person considering the argument doesn ‘t accept one or more of the premises. An argument may be weak, therefore, because it is ill-formed. Or in cases where it is valid or cogent, then it may be weak because you fail to believe that the premises are true.
What is required for an inductive argument to be strong?
An inductive argument is an argument that is intended by the arguer to be strong enough that, if the premises were to be true, then it would be unlikely that the conclusion is false . ... An inductive argument can be affected by acquiring new premises (evidence), but a deductive argument cannot be.
