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.

A valid argument is one in which it is impossible for the premises to be true and the conclusion false at the same time. True or False. Explain your answer. True – This is the definition of a valid argument. 2.

Valid Argument. If all the premises are true, then the conclusion must be true. (In other words, the truth of the conclusion is guaranteed if all the premises are true) ORIt is impossible to have a false conclusion if all the premises are true.

TRUE: A valid argument cannot have all true premises and a false conclusion. So if a valid argument does have a false conclusion, it cannot have all true premises. Thus at least one premise must be false. If an invalid argument has all true premises, then the conclusion must be false.

A fallacy is the use of invalid or otherwise faulty reasoning, or “wrong moves” in the construction of an argument. A fallacious argument may be deceptive by appearing to be better than it really is.

So, an argument with a mixture of true and false premises is still considered to be an argument with false premises–it is false that all of the premises are true. Nevertheless, in these examples, the conclusion is true.

A false premise is an incorrect proposition that forms the basis of an argument or syllogism. Since the premise (proposition, or assumption) is not correct, the conclusion drawn may be in error. For example, consider this syllogism, which involves a false premise: If the streets are wet, it has rained recently.

If no premise or conclusion indicator word is present, then no argument is present. An enthymeme is an argument that is missing a premise or a conclusion or both. An argument that is missing a premise or a conclusion or both is called an “enthymeme.”

In logic, an argument requires a set of (at least) two declarative sentences (or “propositions”) known as the “premises” (or “premisses”), along with another declarative sentence (or “proposition”), known as the conclusion. This structure of two premises and one conclusion forms the basic argumentative structure.

At least a conclusion. By definition, an argument is a two-part structure of claims, one part of which (the premise, or premises) is given as a reason (or reasons) for thinking; the other part (the conclusion) is true. It is fair to say that the word “claim” and the word “sentence” have exactly the same meaning.

What is argumentation? ( 5 points) Logical reasoning or the process of debating The art of speaking or writing effectively An angry confrontation with another Using opinions to support ideas.

Strong evidence is accurate, convincing, and relevant to the argument at hand. It comes from a credible source, and it truly supports the reason it is supposed to prove.