I only have a vague knowledge of prefix and postfix notation. Nothing useable really. Though I think I can evaluate that expression. and(1, 1, 1, 1, 0, 1) = 0
and = For “and” to be true all inputs have to be true, otherwise its false.
or = For “or” to be true just one input has to be true, otherwise its false.
xor = For “xor” to be true only one input can be true, otherwise its false.