i think this complex chain of claims suffers from ambiguity as to what constitutes "an argument"
a logical falacy, to my mind, does render an argument invalid, but not necessarily all arguments presented; often, many arguments in favor of a point are presented as part of an overall discourse, and it does not render the discourse invalid.
A logical fallacy merely means that the conclusion did not follow properly from the premises, that is like saying the earth is round because the moon is round
The presense of a fallacy renders the argument invalid, regardless of conclusion or premises.
However, the presense of a fallacy does not automatically make incorrect the conclusion wrought by the argument.
If your best friend Billy says to you, "My uncle was killed by a falling tree, thus all trees are evil, murdering scum," you can demonstrate that they are making a categorical assumption.
This does not mean that trees are /not/ all evil, murdering scum; it just means Billy made a mistake in his reasoning, and should not arrive at that conclusion using only the proferred faulty argument as the basis for his belief.
Discussion (7)
But it does make me much less likely to give the argument any further consideration.
i think this complex chain of claims suffers from ambiguity as to what constitutes "an argument"
a logical falacy, to my mind, does render an argument invalid, but not necessarily all arguments presented; often, many arguments in favor of a point are presented as part of an overall discourse, and it does not render the discourse invalid.
It most definitely renders a well-formed argument invalid
It makes the argument invalid because the reasoning is wrong.
The claim may still be valid.
What George said!
A logical fallacy merely means that the conclusion did not follow properly from the premises, that is like saying the earth is round because the moon is round
The presense of a fallacy renders the argument invalid, regardless of conclusion or premises.
However, the presense of a fallacy does not automatically make incorrect the conclusion wrought by the argument.
If your best friend Billy says to you, "My uncle was killed by a falling tree, thus all trees are evil, murdering scum," you can demonstrate that they are making a categorical assumption.
This does not mean that trees are /not/ all evil, murdering scum; it just means Billy made a mistake in his reasoning, and should not arrive at that conclusion using only the proferred faulty argument as the basis for his belief.