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-rw-r--r--doc/refman/RefMan-tac.tex5
1 files changed, 4 insertions, 1 deletions
diff --git a/doc/refman/RefMan-tac.tex b/doc/refman/RefMan-tac.tex
index 253eb7f01b..2bab04e90a 100644
--- a/doc/refman/RefMan-tac.tex
+++ b/doc/refman/RefMan-tac.tex
@@ -2113,13 +2113,15 @@ The tactic \texttt{functional induction} performs
case analysis and induction following the definition of a function. It
makes use of a principle generated by \texttt{Function}
(see Section~\ref{Function}) or \texttt{Functional Scheme}
-(see Section~\ref{FunScheme}).
+(see Section~\ref{FunScheme}). Note that this tactic is only available
+after a {\tt Require Import FunInd}.
\begin{coq_eval}
Reset Initial.
Import Nat.
\end{coq_eval}
\begin{coq_example}
+Require Import FunInd.
Functional Scheme minus_ind := Induction for minus Sort Prop.
Check minus_ind.
Lemma le_minus (n m:nat) : n - m <= n.
@@ -4797,6 +4799,7 @@ that performs inversion on hypothesis {\ident} of the form
\texttt{\qualid\ \term$_1$\dots\term$_n$\ = \term} or \texttt{\term\ =
\qualid\ \term$_1$\dots\term$_n$} where \qualid\ must have been
defined using \texttt{Function} (see Section~\ref{Function}).
+Note that this tactic is only available after a {\tt Require Import FunInd}.
\begin{ErrMsgs}
\item \errindex{Hypothesis {\ident} must contain at least one Function}