n-message

[summary: A message singling out one thing from a set of $n$ is sometimes called an $n$-message. For example, a message singling out one thing from a set of 13 is a 13-message. An $n$-message carries $\log_2(n)$ bits of information.]

A message singling out one thing from a set of $n$ is sometimes called an $n$-message. For example, a message singling out one thing from a set of 13 is a 13-message. An $n$-message carries $\log_2(n)$ bits of information. For a formal account of what it means for a message to "single out one thing from a set of $n$," see Information.