The claim of some that all of it is true
As for his words that some claim that all of it is true, if the alleged speaker of those words meant logic in and of itself—as we mentioned earlier—then he is correct. The sum of his statement would thus be: ‘Every correct principle used in the process of thinking is itself true.’ If, on the other hand, this alleged speaker meant that everything found in the books of logic is correct, then this is false. Up till now, I know of no one who has ever said this. When Ibn Taymiyya refuted the one who allegedly said that, it seemed to imply that some people have actually said it. If that was the case, it was his—or one of his followers—responsibility to clarify who that person was, otherwise, his words are nothing more than claims without proof.