The ability to invert logic functions is so useful in real life that I probably used at least three times the number of NAND gates as regular AND gates when doing medium or larger system design.

1] Logic Friday LogicFriday is a free logic gate simulator software that comes with great features. In this software, you can create Truth Tables, Logic Equations, and Logic Gate Diagrams.

Journal of Logic, Language, and Information, Vol. 29, No. 2 (Spring 2020), pp. 121-161 (41 pages) Truth diagrams (TDs) are introduced as a novel graphical representation for propositional logic (PL).