Letters to the Editor
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WT
Just a quibble.
You wrote: "A logical fallacy it may be, but it can also be valid"
But a logical fallacy by definition is an invalid argument, so it is as if you wrote: An invalid argument it may be, but it can also be valid, which makes no sense.
Perhaps you meant "valid" in some other sense than the logical use of the term? Perhaps you meant to say it can also be an effective tactic, or something to that effect, and were not using the term "valid" as a logician would use it? Because clearly an invalid argument cannot also be valid (A cannot be equal to NOT-A, etc.).