meganopteryx replied to your post:logic is fun up until you get to A’BCD’E’ +...
what
exactly
A, B, C, D, and E are all the inputs in the logic circuit, and Y is the output. Two or more multiplied together is an AND function that needs both of them on to get an output of 1 (AB = Y, where A and B need both be on to get Y). Addition is an OR function where at least one is needed to get a 1 (A + B = Y; A, B, or both need to be on to get Y on).
An apostrophe denotes that the input is inverted (A' = Y, so the input must be off to get an output). And we can combine them: AB + B'C = Y, so to turn the output on we need both inputs A and B on, but we can also turn the output on by having input C on but not input B.
this is a Karnaugh Map for simplifying five-input logic circuits. Believe it or not it's simpler than the one in my book, sorta