[dietrichepp]

No it's not. It's a redefinition of terms to exclude counterexamples. I could say "no sandwich is vegetarian" and you show me a grilled cheese sandwich and I say "no true sandwich is vegetarian."

The problem is that people have been passing around a cheat sheet of logical fallacies, but using the mental version of a regex to try and match them. This is not a reliable technique for identifying fallacies. Usually, you would want to recognize them by their content, not their form, and it's essential to know the difference between formal and informal fallacies.

[SherlockeHolmes]

Thank you for the great post! I especially agree with your second paragraph. I admit that my post constitutes a mixture of ethos, pathos, and logos - as opposed to being perfectly aligned with logical stipulations.