interpretation documented

[helm.git] / helm / software / matita / help / C / sec_tactics.xml

diff --git a/helm/software/matita/help/C/sec_tactics.xml b/helm/software/matita/help/C/sec_tactics.xml
index bdfb3e5db83f5a4d9dc98bc7c7a880f89130684a..0205ce8a896f286f0f75154f2eaa4764c9c85ebb 100644 (file)
--- a/helm/software/matita/help/C/sec_tactics.xml
+++ b/helm/software/matita/help/C/sec_tactics.xml
@@ -61,7 +61,7 @@
           <term>Pre-conditions:</term>
           <listitem>
             <para><command>t</command> must have type
-             <command>T<subscript>1</subscript> → ... →
+             <command>T<subscript>1</subscript> → … →
               T<subscript>n</subscript> → G</command>
              where <command>G</command> can be unified with the conclusion
              of the current sequent.</para>
@@ -184,7 +184,8 @@
         <varlistentry role="tactic.synopsis">
           <term>Synopsis:</term>
           <listitem>
-            <para><emphasis role="bold">auto</emphasis> &autoparams;</para>
+            <para><emphasis role="bold">auto</emphasis> &autoparams;. </para>
+            <para><emphasis role="bold">autobatch</emphasis> &autoparams;</para>
           </listitem>
         </varlistentry>
         <varlistentry>
@@ -195,7 +196,8 @@
              controlled by the optional <command>params</command>.
              Moreover, only lemmas whose type signature is a subset of the
              signature of the current sequent are considered. The signature of
-             a sequent is ...&TODO;</para>
+             a sequent is essentially the set of constats appearing in it.
+           </para>
           </listitem>
         </varlistentry>
         <varlistentry>
@@ -597,13 +599,13 @@
   <sect1 id="tac_demodulate">
     <title>demodulate</title>
     <titleabbrev>demodulate</titleabbrev>
-    <para><userinput>demodulate</userinput></para>
+    <para><userinput>demodulate auto_params</userinput></para>
     <para>
       <variablelist>
         <varlistentry role="tactic.synopsis">
           <term>Synopsis:</term>
           <listitem>
-            <para><emphasis role="bold">demodulate</emphasis></para>
+            <para><emphasis role="bold">demodulate</emphasis> &autoparams;</para>
           </listitem>
         </varlistentry>
         <varlistentry>
@@ -670,13 +672,13 @@
   <sect1 id="tac_elim">
     <title>elim</title>
     <titleabbrev>elim</titleabbrev>
-    <para><userinput>elim t using th hyps</userinput></para>
+    <para><userinput>elim t pattern using th hyps</userinput></para>
     <para>
       <variablelist>
         <varlistentry role="tactic.synopsis">
           <term>Synopsis:</term>
           <listitem>
-            <para><emphasis role="bold">elim</emphasis> &sterm; [<emphasis role="bold">using</emphasis> &sterm;] &intros-spec;</para>
+            <para><emphasis role="bold">elim</emphasis> &sterm; &pattern; [<emphasis role="bold">using</emphasis> &sterm;] &intros-spec;</para>
           </listitem>
         </varlistentry>
         <varlistentry>
@@ -693,6 +695,10 @@
           <listitem>
             <para>It proceeds by cases on the values of <command>t</command>,
              according to the elimination principle <command>th</command>.
+             The induction predicate is restricted by
+             <command>pattern</command>. In particular, if some hypothesis
+             is listed in <command>pattern</command>, the hypothesis is
+             generalized and cleared before eliminating <command>t</command>
             </para>
           </listitem>
         </varlistentry>