determine strenth of an argument

bupbebeo wrote:How we determine the strength of an argument. We base on relationship between premises and conclusion or between assumption and conclusion?


If we have an argument which is strong based on relationship between premises and conclusion. but its assumption is problematic. I wonder whether we can consider this argument strong?

The strength of an argument is determined by the degree of logical
strength that it possesses.

logical strength: An argument has logical strength when its premises, if true, actually provide
support for its conclusion.

Notice that the (logical) strength of an argument does not depend on the truth of the premises.
An argument is (logically) strong if when we suppose the premises are true, then the conclusion
follows (or is made more reasonable). Thus, logical strength is a structural characteristic of an
argument.

bupbebeo wrote:How we determine the strength of an argument. We base on relationship between premises and conclusion or between assumption and conclusion?


If we have an argument which is strong based on relationship between premises and conclusion. but its assumption is problematic. I wonder whether we can consider this argument strong?