</xsl:call-template>
</xsl:template>
-</xsl:stylesheet>
-
-
-
-
-
+<!-- POS, NEG e ZERO -->
+
+<xsl:template match="APPLY[*[position()=1 and name()='MUTCONSTRUCT' and @uri='cic:/Coq/ZArith/fast_integer/fast_integers/Z.ind' and @noConstr='2'] and count(*)=2]" mode="pure">
+ <xsl:apply-templates select="*[2]" mode="Zpositive">
+ <xsl:with-param name="base" select="0"/>
+ <xsl:with-param name="exp" select="1"/>
+ <xsl:with-param name="iden" select="*[2]/@id"/>
+ </xsl:apply-templates>
+</xsl:template>
+
+<xsl:template match="APPLY[*[position()=1 and name()='MUTCONSTRUCT' and @uri='cic:/Coq/ZArith/fast_integer/fast_integers/Z.ind' and @noConstr='3'] and count(*)=2]" mode="pure">
+ <m:apply helm:xref="{@id}">
+ <m:minus definitionURL="{*[1]/@uri}" helm:xref="{*[1]/@id}"/>
+ <xsl:apply-templates select="*[2]" mode="Zpositive">
+ <xsl:with-param name="base" select="0"/>
+ <xsl:with-param name="exp" select="1"/>
+ <xsl:with-param name="iden" select="*[2]/@id"/>
+ </xsl:apply-templates>
+ </m:apply>
+</xsl:template>
+<xsl:template match="MUTCONSTRUCT[@uri='cic:/Coq/ZArith/fast_integer/fast_integers/Z.ind' and @noConstr='1']" mode="pure">
+ <m:ci definitionURL="{@uri}" helm:xref="{@id}">0</m:ci>
+</xsl:template>
+<!-- prova di notazione per positive -->
+<xsl:template match="APPLY[*[position()=1 and name()='MUTCONSTRUCT' and @uri='cic:/Coq/ZArith/fast_integer/fast_integers/positive.ind']]" mode="pure">
+ <xsl:apply-templates select="." mode="Zpositive">
+ <xsl:with-param name="base" select="0"/>
+ <xsl:with-param name="exp" select="1"/>
+ <xsl:with-param name="iden" select="@id"/>
+ </xsl:apply-templates>
+</xsl:template>
+<xsl:template match="MUTCONSTRUCT[@uri='cic:/Coq/ZArith/fast_integer/fast_integers/positive.ind' and @noConstr='3']" mode="pure">
+ <m:ci definitionURL="{@uri}" helm:xref="{@id}">1</m:ci>
+</xsl:template>
+
+<xsl:template match="*" mode="Zpositive">
+ <xsl:param name="base" select="0"/>
+ <xsl:param name="exp" select="1"/>
+ <xsl:param name="iden" select="''"/>
+ <xsl:choose>
+ <xsl:when test="name()='APPLY' and *[position()=1 and name()='MUTCONSTRUCT'
+and @uri='cic:/Coq/ZArith/fast_integer/fast_integers/positive.ind' and @noConstr='1']">
+ <xsl:apply-templates select="*[2]" mode="Zpositive">
+ <xsl:with-param name="base" select="$base + $exp"/>
+ <xsl:with-param name="exp" select="2 * $exp"/>
+ <xsl:with-param name="iden" select="$iden"/>
+ </xsl:apply-templates>
+ </xsl:when>
+ <xsl:when test="name()='APPLY' and *[position()=1 and name()='MUTCONSTRUCT'
+and @uri='cic:/Coq/ZArith/fast_integer/fast_integers/positive.ind' and @noConstr='2']">
+ <xsl:apply-templates select="*[2]" mode="Zpositive">
+ <xsl:with-param name="base" select="$base"/>
+ <xsl:with-param name="exp" select="2 * $exp"/>
+ <xsl:with-param name="iden" select="$iden"/>
+ </xsl:apply-templates>
+ </xsl:when>
+ <xsl:when test="name()='MUTCONSTRUCT' and @uri='cic:/Coq/ZArith/fast_integer/fast_integers/positive.ind' and @noConstr='3'">
+ <m:ci helm:xref="{$iden}"><xsl:value-of select="$base + $exp"/></m:ci>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:choose>
+ <xsl:when test="$base = 0">
+ <xsl:choose>
+ <xsl:when test="$exp = 1">
+ <xsl:apply-templates select="." mode="pure"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <m:apply helm:xref="{$iden}">
+ <m:times/>
+ <m:ci><xsl:value-of select="$exp"/></m:ci>
+ <xsl:apply-templates select="." mode="pure"/>
+ </m:apply>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:when>
+ <xsl:otherwise>
+ <m:apply helm:xref="{$iden}">
+ <m:plus/>
+ <m:ci><xsl:value-of select="$base"/></m:ci>
+ <xsl:choose>
+ <xsl:when test="$exp = 1">
+ <xsl:apply-templates select="." mode="pure"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <m:apply helm:xref="{$iden}">
+ <m:times/>
+ <m:ci><xsl:value-of select="$exp"/></m:ci>
+ <xsl:apply-templates select="." mode="pure"/>
+ </m:apply>
+ </xsl:otherwise>
+ </xsl:choose>
+ </m:apply>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:otherwise>
+ </xsl:choose>
+</xsl:template>
+</xsl:stylesheet>