PROOFS-CO.html -- ACL2 Version 6.3

### PROOFS-CO

the proofs character output channel

    Major Section:  ACL2-BUILT-INS

`Proofs-co` is an `ld` special (see ld). The accessor is `(proofs-co state)` and the updater is `(set-proofs-co val state)`. `Proofs-co` must be an open character output channel. It is to this channel that `defun`, `defthm`, and the other event commands print their commentary.

``Proofs-co'' stands for ``proofs character output.'' The initial value of `proofs-co` is the same as the value of `*standard-co*` (see *standard-co*).