File: mk_neg.doc

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\DOC mk_neg

\TYPE {mk_neg : term -> term}

\SYNOPSIS
Constructs a logical negation.

\DESCRIBE
{mk_neg `t`} returns {`~t`}.

\FAILURE
Fails with {mk_neg} unless {t} is of type {bool}.

\EXAMPLE
{
  # mk_neg `p /\ q`;;
  val it : term = `~(p /\ q)`

  # mk_neg `~p`;;
  val it : term = `~ ~p`
}

\SEEALSO
dest_neg, is_neg.

\ENDDOC