(logic circuits) A Boolean operation which is correct if the two input variables are different but is in any other case Phony; the XOR operation ( A B ¯ + A ¯ B displaystyle scriptstyle A overline B + overline A B These kinds of are Dithyrambic and Nomic https://thermal-stress-testing-me07901.blogzet.com/5-easy-facts-about-pcb-thermal-cycling-failure-modes-described-50498320