@JLNobody,
Here's the break.
The
evidential support for the statement that "there are no absolute truths" is pragmatic in the sense that "truth" is "what works" and is
always open to revision. That implies that "truth" has an aspect of
temporality whereas "absolute truth" does not. So
transcendentally "Absolute truth" is beyond the realm of any temporal agent seeking effective axioms, and it is from that transcendental level that "logicality" is being evoked. In the Wittgensteinian sense, the word "truth" has
different meanings at the transcendental and pragmatic levels. (Just like in Russell's paradox "the barbers'
self" has different meanings as "the shaver" and "the receiver of a shave")