<para><userinput>alias num (instance n) = "def"</userinput></para>
<para>
<variablelist>
- <varlistentry role="tactic.synopsis">
+ <varlistentry>
<term>Synopsis:</term>
<listitem>
<para><emphasis role="bold">alias</emphasis>
<para><userinput>check t</userinput></para>
<para>
<variablelist>
- <varlistentry role="tactic.synopsis">
+ <varlistentry>
<term>Synopsis:</term>
<listitem>
<para><emphasis role="bold">check</emphasis> &term;</para>
<para><userinput>coercion u</userinput></para>
<para>
<variablelist>
- <varlistentry role="tactic.synopsis">
+ <varlistentry>
<term>Synopsis:</term>
<listitem>
<para><emphasis role="bold">coercion</emphasis> &uri;</para>
</sect1>
<sect1 id="command_default">
<title>default</title>
- <para><userinput></userinput></para>
+ <para><userinput>default "s" u<subscript>1</subscript> … u<subscript>n</subscript></userinput></para>
<para>
<variablelist>
- <varlistentry role="tactic.synopsis">
+ <varlistentry>
<term>Synopsis:</term>
<listitem>
<para><emphasis role="bold">default</emphasis>
+ &qstring; &uri; [&uri;]…
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Action:</term>
<listitem>
- <para>&TODO;</para>
+ <para>It registers a cluster of related definitions and
+ theorems to be used by tactics and the rendering engine.
+ Some functionalities of Matita are not available when some
+ clusters have not been registered. Overloading a cluster
+ registration is possible: the last registration will be the
+ default one, but the previous ones are still in effect.</para>
+ <para>
+ <command>s</command> is an identifier of the cluster and
+ <command>u<subscript>1</subscript> … u<subscript>n</subscript></command>
+ are the URIs of the definitions and theorems of the cluster.
+ The number <command>n</command> of required URIs depends on the
+ cluster. The following clusters are supported.
+ </para>
+ <table>
+ <title>clusters</title>
+ <tgroup cols="5">
+ <thead>
+ <row>
+ <entry>name</entry>
+ <entry>expected object for 1st URI</entry>
+ <entry>expected object for 2nd URI</entry>
+ <entry>expected object for 3rd URI</entry>
+ <entry>expected object for 4th URI</entry>
+ <entry>expected object for 5th URI</entry>
+ </row>
+ </thead>
+ <tbody>
+ <row>
+ <entry>equality</entry>
+ <entry>an inductive type (say, of type <command>eq</command>) of type ∀A:Type.A <emphasis role="bold">→</emphasis> <emphasis role="bold">Prop</emphasis> with one family parameter and one constructor of type ∀x:A.eq A x</entry>
+ <entry>a theorem of type <emphasis role="bold">∀</emphasis>A.<emphasis role="bold">∀</emphasis>x,y:A.eq A x y <emphasis role="bold">→</emphasis> eq A y x</entry>
+ <entry>a theorem of type <emphasis role="bold">∀</emphasis>A.<emphasis role="bold">∀</emphasis>x,y,z:A.eq A x y <emphasis role="bold">→</emphasis> eq A y z <emphasis role="bold">→</emphasis> eq A x z</entry>
+ <entry><emphasis role="bold">∀</emphasis>A.<emphasis role="bold">∀</emphasis>a.<emphasis role="bold">∀</emphasis> P:A <emphasis role="bold">→</emphasis> <emphasis role="bold">Prop</emphasis>.P x <emphasis role="bold">→</emphasis> <emphasis role="bold">∀</emphasis>y.eq A x y <emphasis role="bold">→</emphasis> P y</entry>
+ <entry><emphasis role="bold">∀</emphasis>A.<emphasis role="bold">∀</emphasis>a.<emphasis role="bold">∀</emphasis> P:A <emphasis role="bold">→</emphasis> <emphasis role="bold">Prop</emphasis>.P x <emphasis role="bold">→</emphasis> <emphasis role="bold">∀</emphasis>y.eq A y x <emphasis role="bold">→</emphasis> P y</entry>
+ </row>
+ <row>
+ <entry>true</entry>
+ <entry>an inductive type of type <emphasis role="bold">Prop</emphasis> with only one constructor that has no arguments</entry>
+ <entry/>
+ <entry/>
+ <entry/>
+ <entry/>
+ </row>
+ <row>
+ <entry>false</entry>
+ <entry>an inductive type of type <emphasis role="bold">Prop</emphasis> without constructors</entry>
+ <entry/>
+ <entry/>
+ <entry/>
+ <entry/>
+ </row>
+ <row>
+ <entry>absurd</entry>
+ <entry>a theorem of type <emphasis role="bold">∀</emphasis>A:Prop.<emphasis role="bold">∀</emphasis>B:Prop.A <emphasis role="bold">→</emphasis> Not A <emphasis role="bold">→</emphasis> B</entry>
+ <entry/>
+ <entry/>
+ <entry/>
+ <entry/>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
</listitem>
</varlistentry>
</variablelist>
<para><userinput>hint</userinput></para>
<para>
<variablelist>
- <varlistentry role="tactic.synopsis">
+ <varlistentry>
<term>Synopsis:</term>
<listitem>
<para><emphasis role="bold">hint</emphasis>
<para><userinput>include "s"</userinput></para>
<para>
<variablelist>
- <varlistentry role="tactic.synopsis">
+ <varlistentry>
<term>Synopsis:</term>
<listitem>
<para><emphasis role="bold">include</emphasis> &qstring;</para>
<para><userinput></userinput></para>
<para>
<variablelist>
- <varlistentry role="tactic.synopsis">
+ <varlistentry>
<term>Synopsis:</term>
<listitem>
<para><emphasis role="bold">include'</emphasis> &qstring;</para>
<para><userinput>set "baseuri" "s"</userinput></para>
<para>
<variablelist>
- <varlistentry role="tactic.synopsis">
+ <varlistentry>
<term>Synopsis:</term>
<listitem>
<para><emphasis role="bold">set</emphasis> &qstring; &qstring;</para>
</sect1>
<sect1 id="command_whelp">
<title>whelp</title>
- <para><userinput></userinput></para>
+ <para><userinput>whelp locate "s"</userinput></para>
+ <para><userinput>whelp hint t</userinput></para>
+ <para><userinput>whelp elim t</userinput></para>
+ <para><userinput>whelp match t</userinput></para>
+ <para><userinput>whelp instance t</userinput></para>
<para>
<variablelist>
- <varlistentry role="tactic.synopsis">
+ <varlistentry>
<term>Synopsis:</term>
<listitem>
<para><emphasis role="bold">whelp</emphasis>
+ [<emphasis role="bold">locate</emphasis> &qstring;
+ | <emphasis role="bold">hint</emphasis> &term;
+ | <emphasis role="bold">elim</emphasis> &term;
+ | <emphasis role="bold">match</emphasis> &term;
+ | <emphasis role="bold">instance</emphasis> &term;
+ ]
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Action:</term>
<listitem>
- <para>&TODO;</para>
+ <para>Performs the corresponding <link linkend="whelp">query</link>,
+ showing the result in the CIC browser. The command is removed
+ from the script.
+ </para>
</listitem>
</varlistentry>
</variablelist>
<para><userinput></userinput></para>
<para>
<variablelist>
- <varlistentry role="tactic.synopsis">
+ <varlistentry>
<term>Synopsis:</term>
<listitem>
<para><emphasis role="bold">qed</emphasis>
</variablelist>
</para>
</sect1>
+ <sect1 id="tac_applyS">
+ <title>applyS</title>
+ <titleabbrev>applyS</titleabbrev>
+ <para><userinput>applyS t</userinput></para>
+ <para>
+ <variablelist>
+ <varlistentry role="tactic.synopsis">
+ <term>Synopsis:</term>
+ <listitem>
+ <para><emphasis role="bold">applyS</emphasis> &sterm;</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>Pre-conditions:</term>
+ <listitem>
+ <para><command>t</command> must have type
+ <command>T<subscript>1</subscript> → ... →
+ T<subscript>n</subscript> → G</command>.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>Action:</term>
+ <listitem>
+ <para><command>applyS</command> is useful when
+ <command>apply</command> fails because the current goal
+ and the conclusion of the applied theorems are extensionally
+ equivalent up to instantiation of metavariables, but cannot
+ be unified. E.g. the goal is <command>P(n*O+m)</command> and
+ the theorem to be applied proves <command>∀m.P(m+O)</command>.
+ </para>
+ <para>
+ It tries to automatically rewrite the current goal using
+ <link linkend="tac_auto">auto paramodulation</link>
+ to make it unifiable with <command>G</command>.
+ Then it closes the current sequent by applying
+ <command>t</command> to <command>n</command>
+ implicit arguments (that become new sequents).
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>New sequents to prove:</term>
+ <listitem>
+ <para>It opens a new sequent for each premise
+ <command>T<subscript>i</subscript></command> that is not
+ instantiated by unification. <command>T<subscript>i</subscript></command> is
+ the conclusion of the <command>i</command>-th new sequent to
+ prove.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </para>
+ </sect1>
<sect1 id="tac_assumption">
<title>assumption</title>
<titleabbrev>assumption</titleabbrev>