Question 975481
<font face="Times New Roman" size="+2">


I call this one invalid.


Consider the case *[tex \LARGE \neg G,\,\neg E,\,R,\,\neg M].


Both *[tex \LARGE (\neg G\ \small\wedge\LARGE\ E)\ \cdot\ (R\ \small\wedge\LARGE M)] and *[tex \LARGE R\ \small\wedge\LARGE \neg G] are true, yet *[tex \LARGE E\ \small\wedge\LARGE M] is nonetheless false.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it

*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \