# Implies what? Classic List Threaded 5 messages Open this post in threaded view
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## Implies what?

 Would someone please explain to me the following sentence (taken from the book, Chapter 1): The If-x-then-y function (also known as x -> y, or ‘‘x Implies y’’) returns 1 when x is 0 or when both x and y are 1. I *never* understood "X Implies Y". I mean, "False Implies True"? Can somebody break it down for me please?
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## Re: Implies what?

 Not quite. That paragraph is directly related to the table in figure 1.2. In this case, the author is just stating that if x is 1, then the output is equal to whatever y is.
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## Re: Implies what?

 Sorry. Still doesn't make sense to me. Maybe it's the word "implies." I can see that if X is 1, the output is Y, (thank you for showing that to me). That *maybe* is a vague implication. But if X is 0, the output is 1. The output has nothing to do with Y. Nothing is "implied" in that case. So I'm pretty sure I don't "get" it.