+++ /dev/null
-<?xml version="1.0"?>
-
-<!--***********************************************************************-->
-<!-- Extension to the XSLT version 0.07 of MathML content to presentation: -->
-<!-- First draft: February 19 2000, Andrea Asperti, Irene Schena -->
-<!-- Revised: March 3 2000, Irene Schena -->
-<!-- Revised: March 15 2000, Claudio Sacerdoti Coen, Irene Schena -->
-<!-- Revised: March 21 2000, Irene Schena -->
-<!--***********************************************************************-->
-
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
- xmlns:m="http://www.w3.org/1998/Math/MathML"
- xmlns:helm="http://www.cs.unibo.it/helm">
-
-<xsl:import href="mml2mmlv1_0.xsl"/>
-
-<!--***********************************************************************-->
-<!-- Parameter affecting line-breaking -->
-<!--***********************************************************************-->
-
-<xsl:variable name="framewidth" select="30"/>
-
-<!--***********************************************************************-->
-<!-- Gli oggetti sono stampati come mtext all'interno di una marca toplevel-->
-<!-- math ma al di fuori di semantics. Ora vi sono tanti semantics quanti -->
-<!-- sono i termini: la presentation per un termine e' generata come primo -->
-<!-- figlio di un semantics e l'originario content viene inserito nel -->
-<!-- nel secondo figlio di semantics, annotation-xml -->
-<!--***********************************************************************-->
-
-<!--**********************-->
-<!-- OBJECTS -->
-<!--**********************-->
-
-<xsl:template match="/">
- <xsl:processing-instruction name="cocoon-format">type="text/xhtml"</xsl:processing-instruction>
- <xsl:apply-templates select="*"/>
-</xsl:template>
-
-<!-- DEFINITION -->
-
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-
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-
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-
-<!--**********************-->
-<!-- TERMS -->
-<!--**********************-->
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- </m:mtd>
- </m:mtr>
- </xsl:if>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mo>:=</m:mo>
- <xsl:apply-templates select="following-sibling::*[position()=1]"/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- </xsl:for-each>
- </m:mtable>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mo stretchy="false">}</m:mo>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- </m:mtable>
- </xsl:when>
- <xsl:otherwise>
- <m:mo>FIX</m:mo>
- <m:mi><xsl:value-of select="m:ci"/></m:mi>
- <m:mo stretchy="false">{</m:mo>
- <m:mtable align="baseline 1" equalrows="false" columnalign="left">
- <xsl:for-each select="m:bvar">
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mi><xsl:value-of select="m:ci"/></m:mi>
- <m:mo>:</m:mo>
- <xsl:apply-templates select="m:type"/>
- <m:mo>:=</m:mo>
- <xsl:apply-templates select="following-sibling::*[position() = 1]"/>
- <xsl:if test="position()=last()">
- <m:mo stretchy="false">}</m:mo>
- </xsl:if>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- </xsl:for-each>
- </m:mtable>
- </xsl:otherwise>
- </xsl:choose>
- </xsl:when>
- <xsl:when test="$name='cofix'">
- <xsl:choose>
- <xsl:when test="$charlength >= $framewidth">
- <m:mtable align="baseline 1" equalrows="false" columnalign="left">
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mo>COFIX</m:mo>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <m:mi><xsl:value-of select="m:ci"/></m:mi>
- <m:mo stretchy="false">{</m:mo>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
- <m:mtable align="baseline 1" equalrows="false" columnalign="left">
- <xsl:for-each select="m:bvar">
- <xsl:variable name="charlength"><xsl:apply-templates select="m:type" mode="charcount"><xsl:with-param name="nosibling" select="1"/></xsl:apply-templates></xsl:variable>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mi><xsl:value-of select="m:ci"/></m:mi>
- <m:mo>:</m:mo>
- <xsl:if test="$framewidth > $charlength">
- <xsl:apply-templates select="m:type"/>
- </xsl:if>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- <xsl:if test="$charlength >= $framewidth">
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mphantom><m:mtext>:=</m:mtext></m:mphantom>
- <xsl:apply-templates select="m:type"/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- </xsl:if>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mo>:=</m:mo>
- <xsl:apply-templates select="following-sibling::*[position() = 1]"/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- </xsl:for-each>
- </m:mtable>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mo stretchy="false">}</m:mo>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- </m:mtable>
- </xsl:when>
- <xsl:otherwise>
- <m:mo>COFIX</m:mo>
- <m:mi><xsl:value-of select="m:ci"/></m:mi>
- <m:mo stretchy="false">{</m:mo>
- <m:mtable align="baseline 1" equalrows="false" columnalign="left">
- <xsl:for-each select="m:bvar">
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mi><xsl:value-of select="m:ci"/></m:mi>
- <m:mo>:</m:mo>
- <xsl:apply-templates select="m:type"/>
- <m:mo>:=</m:mo>
- <xsl:apply-templates select="following-sibling::*[position() = 1]"/>
- <xsl:if test="position()=last()">
- <m:mo stretchy="false">}</m:mo>
- </xsl:if>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- </xsl:for-each>
- </m:mtable>
- </xsl:otherwise>
- </xsl:choose>
- </xsl:when>
- <!-- ***************************************** -->
- <!-- *********** PROOF ELEMENTS ************** -->
- <!-- ***************************************** -->
- <xsl:when test="$name='proof'">
- <m:mtable align="baseline 1" equalrows="false" columnalign="left">
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <xsl:apply-templates select="*[position()=2]"/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mtext color="#b03060">we proved </m:mtext>
- <xsl:apply-templates select="*[position()=3]"/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- </m:mtable>
- </xsl:when>
- <xsl:when test="$name='letin'">
- <m:mtable align="baseline 1" equalrows="false" columnalign="left">
- <!-- <xsl:for-each select="APPLY[m:csymbol and (string(m:csymbol)='let')]"> -->
- <xsl:for-each select="*[(last() > position()) and (position()>1)]">
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <xsl:apply-templates select="."/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- </xsl:for-each>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <xsl:apply-templates select="*[position()=last()]"/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- </m:mtable>
- </xsl:when>
- <xsl:when test="$name='let'">
- <m:mtext>(</m:mtext>
- <xsl:apply-templates select="m:ci"/>
- <m:mtext>) </m:mtext>
- <xsl:apply-templates select="*[3]"/>
- </xsl:when>
- <xsl:when test="$name='thread'">
- <m:mtable align="baseline 1" equalrows="false" columnalign="left">
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <xsl:choose>
- <xsl:when test="name(*[last()])='m:apply'">
- <xsl:apply-templates select="*[last()]"/>
- </xsl:when>
- <xsl:otherwise>
- <m:mtext>Consider </m:mtext>
- <xsl:apply-templates select="*[last()]"/>
- </xsl:otherwise>
- </xsl:choose>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- <xsl:apply-templates mode="thread" select="*[(last()-2)]"/>
- </m:mtable>
- </xsl:when>
- <xsl:when test="$name='rewrite_and_apply'">
- <m:mtable>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mtext>Rewrite</m:mtext>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <xsl:apply-templates select="*[2]/*[2]"/>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <m:mtext>with</m:mtext>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <xsl:apply-templates select="*[2]/*[3]"/>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <m:mtext>by</m:mtext>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <xsl:apply-templates select="*[2]/*[4]"/>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <m:mtext>in</m:mtext>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <xsl:apply-templates select="*[3]"/>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <m:mtext>and apply</m:mtext>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <xsl:apply-templates select="*[position()>3]"/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- </m:mtable>
- </xsl:when>
- <xsl:when test="$name='and_ind'">
- <m:mtable align="baseline 1" equalrows="false" columnalign="left">
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <xsl:choose>
- <xsl:when test="name(*[2])='m:apply'">
- <xsl:apply-templates select="*[2]"/>
- </xsl:when>
- <xsl:otherwise>
- <m:mtext>Consider </m:mtext>
- <xsl:apply-templates select="*[2]"/>
- </xsl:otherwise>
- </xsl:choose>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- <m:mtr>
- <m:mtd>
- <m:mtext>In particular, we have</m:mtext>
- </m:mtd>
- </m:mtr>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mtext>(</m:mtext>
- <xsl:apply-templates select="*[3]"/>
- <m:mtext>)</m:mtext>
- <xsl:apply-templates select="*[4]"/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mtext>(</m:mtext>
- <xsl:apply-templates select="*[5]"/>
- <m:mtext>)</m:mtext>
- <xsl:apply-templates select="*[6]"/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <xsl:apply-templates select="*[7]"/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- </m:mtable>
- </xsl:when>
- <xsl:when test="$name='or_ind'">
- <m:mtable align="baseline 1" equalrows="false" columnalign="left">
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <xsl:choose>
- <xsl:when test="name(*[2])='m:apply'">
- <xsl:apply-templates select="*[2]"/>
- </xsl:when>
- <xsl:otherwise>
- <m:mtext>Consider</m:mtext>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <xsl:apply-templates select="*[2]"/>
- </xsl:otherwise>
- </xsl:choose>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- <m:mtr>
- <m:mtd>
- <m:mtext>We prove</m:mtext>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <xsl:apply-templates select="*[3]"/>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <m:mtext>by cases:</m:mtext>
- </m:mtd>
- </m:mtr>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mtext>*</m:mtext>
- <xsl:apply-templates select="*[4]"/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mtext>*</m:mtext>
- <xsl:apply-templates select="*[5]"/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- </m:mtable>
- </xsl:when>
- <xsl:otherwise>
- <m:ci>ERROR</m:ci>
- </xsl:otherwise>
- </xsl:choose>
- </m:mrow>
-</xsl:template>
-
-<xsl:template match="*" mode="thread">
- <xsl:variable name="name"><xsl:value-of select="following-sibling::*[position()=1]/m:csymbol"/></xsl:variable>
- <xsl:choose>
- <xsl:when test="$name='rw_step'">
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mtext>Rewrite</m:mtext>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <xsl:apply-templates select="following-sibling::*[position()=1]/*[2]"/>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <m:mtext>with</m:mtext>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <xsl:apply-templates select="following-sibling::*[position()=1]/*[3]"/>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <m:mtext>by</m:mtext>
- <m:mphantom><m:mtext>_</m:mtext></m:mphantom>
- <xsl:apply-templates select="following-sibling::*[position()=1]/*[4]"/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <xsl:apply-templates select="."/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- </xsl:when>
- <xsl:otherwise>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <xsl:apply-templates select="following-sibling::*[position()=1]"/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <xsl:apply-templates select="."/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- </xsl:otherwise>
- </xsl:choose>
- <xsl:apply-templates mode="thread" select="preceding-sibling::*[position()=2]"/>
-</xsl:template>
-
-
-<!-- LAMBDA -->
-
-<xsl:template match="m:lambda">
- <xsl:variable name="charlength"><xsl:apply-templates select="*[position()=1]" mode="charcount"/></xsl:variable>
- <m:mrow helm:xref="{@helm:xref}">
- <xsl:choose>
- <xsl:when test="$charlength >= $framewidth">
- <m:mtable align="baseline 1" equalrows="false" columnalign="left">
- <m:mtr>
- <m:mtd>
- <m:mo color="Red">λ</m:mo>
- <xsl:apply-templates select="m:bvar"/>
- </m:mtd>
- </m:mtr>
- <m:mtr>
- <m:mtd>
- <m:mrow>
- <m:mo>.</m:mo>
- <xsl:apply-templates select="*[position()=2]"/>
- </m:mrow>
- </m:mtd>
- </m:mtr>
- </m:mtable>
- </xsl:when>
- <xsl:otherwise>
- <m:mo color="Red">λ</m:mo>
- <xsl:apply-templates select="m:bvar/m:ci"/>
- <m:mo>:</m:mo>
- <xsl:apply-templates select="m:bvar/m:type"/>
- <m:mo>.</m:mo>
- <xsl:apply-templates select="*[position()=2]"/>
- </xsl:otherwise>
- </xsl:choose>
- </m:mrow>
-</xsl:template>
-
-<!-- *********************************** -->
-<!-- BASE SET OF MATHML CONTENT ELEMENTS -->
-<!-- *********************************** -->
-
-<!-- Logic -->
-
-<xsl:template match = "m:apply[m:eq[1]]">
- <xsl:variable name="charlength">
- <xsl:apply-templates select="*[1]" mode="charcount"/>
- </xsl:variable>
- <xsl:choose>
- <xsl:when test="$charlength >= $framewidth">
- <m:mtable align="baseline 1" equalrows="false" columnalign="left">
- <xsl:if test="@helm:xref">
- <xsl:attribute name="helm:xref">
- <xsl:value-of select="@helm:xref"/>
- </xsl:attribute>
- </xsl:if>
- <m:mtr>
- <m:mtd>
- <m:mo stretchy="false">(</m:mo>
- <xsl:apply-templates select="*[position()=2]"/>
- </m:mtd>
- </m:mtr>
- <xsl:for-each select = "*[position()>2]">
- <m:mtr>
- <m:mtd>
- <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
- <m:mo helm:xref="m:in/@helm:xref">
- =
- </m:mo>
- <xsl:apply-templates select="."/>
- </m:mtd>
- </m:mtr>
- </xsl:for-each>
- <m:mtr>
- <m:mtd>
- <m:mo stretchy="false">)</m:mo>
- </m:mtd>
- </m:mtr>
- </m:mtable>
- </xsl:when>
- <xsl:otherwise>
- <xsl:apply-imports/>
- </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-
-<xsl:template match = "m:apply[m:and[1]|m:or[1]
- |m:geq[1]|m:leq[1]|m:gt[1]|m:lt[1]
- |m:in[1]|m:intesect[1]|m:union[1]|m:subset[1]
- |m:prsubset|m:setdiff[1]]">
- <xsl:variable name="symbol">
- <xsl:choose>
- <xsl:when test="m:and[1]">
- <xsl:value-of select="'wedge'"/>
- </xsl:when>
- <xsl:when test="m:or[1]">
- <xsl:value-of select="'vee'"/>
- </xsl:when>
- <xsl:when test="m:geq[1]">
- <xsl:value-of select="'geq'"/>
- </xsl:when>
- <xsl:when test="m:leq[1]">
- <xsl:value-of select="'leq'"/>
- </xsl:when>
- <xsl:when test="m:gt[1]">
- <xsl:value-of select="'gt'"/>
- </xsl:when>
- <xsl:when test="m:lt[1]">
- <xsl:value-of select="'lt'"/>
- </xsl:when>
- <xsl:when test="m:eq[1]">
- <xsl:value-of select="'Equal'"/>
- </xsl:when>
- <xsl:when test="m:in[1]">
- <xsl:value-of select="'Element'"/>
- </xsl:when>
- <xsl:when test="m:subset[1]">
- <xsl:value-of select="'SubsetEqual'"/>
- </xsl:when>
- <xsl:when test="m:prsubset[1]">
- <xsl:value-of select="'subset'"/>
- </xsl:when>
- <xsl:when test="m:intersect[1]">
- <xsl:value-of select="'Intersection'"/>
- </xsl:when>
- <xsl:when test="m:union[1]">
- <xsl:value-of select="'Union'"/>
- </xsl:when>
- <xsl:when test="m:setdiff[1]">
- <xsl:value-of select="'Backslash'"/>
- </xsl:when>
- </xsl:choose>
- </xsl:variable>
- <xsl:variable name="charlength">
- <xsl:apply-templates select="*[1]" mode="charcount"/>
- </xsl:variable>
- <xsl:choose>
- <xsl:when test="$charlength >= $framewidth">
- <m:mtable align="baseline 1" equalrows="false" columnalign="left">
- <xsl:if test="@helm:xref">
- <xsl:attribute name="helm:xref">
- <xsl:value-of select="@helm:xref"/>
- </xsl:attribute>
- </xsl:if>
- <m:mtr>
- <m:mtd>
- <m:mo stretchy="false">(</m:mo>
- <xsl:apply-templates select="*[position()=2]"/>
- </m:mtd>
- </m:mtr>
- <xsl:for-each select = "*[position()>2]">
- <m:mtr>
- <m:mtd>
- <m:mphantom><m:mtext>__</m:mtext></m:mphantom>
- <m:mo helm:xref="{*[1]/@helm:xref}">
- <m:mchar name="{$symbol}"/>
- </m:mo>
- <xsl:apply-templates select="."/>
- </m:mtd>
- </m:mtr>
- </xsl:for-each>
- <m:mtr>
- <m:mtd>
- <m:mo stretchy="false">)</m:mo>
- </m:mtd>
- </m:mtr>
- </m:mtable>
- </xsl:when>
- <xsl:otherwise>
- <xsl:apply-imports/>
- </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:set">
- <xsl:choose>
- <xsl:when test="count(child::*) = 0">
- <m:mo>
- <m:mchar name="EmptySet"/>
- </m:mo>
- </xsl:when>
- <xsl:otherwise>
- <xsl:variable name="charlength">
- <xsl:apply-templates select="*[1]" mode="charcount"/>
- </xsl:variable>
- <xsl:choose>
- <xsl:when test="$charlength >= $framewidth">
- <xsl:choose>
- <xsl:when test="name(*[1]) = 'm:bvar'">
- <m:mtable align="baseline 1" equalrows="false" columnalign="left">
- <m:mtr>
- <m:mtd>
- <m:mo stretchy="false">{</m:mo>
- <xsl:apply-templates select="*[position()=1]"/>
- </m:mtd>
- </m:mtr>
- <m:mtr>
- <m:mtd>
- <m:mphantom><m:mtext>{</m:mtext></m:mphantom>
- <m:mo stretchy="false">|</m:mo>
- <xsl:apply-templates select="m:condition/*[1]"/>
- </m:mtd>
- </m:mtr>
- <m:mtr>
- <m:mtd>
- <m:mo stretchy="false">}</m:mo>
- </m:mtd>
- </m:mtr>
- </m:mtable>
- </xsl:when>
- <xsl:otherwise>
- <m:mtable align="baseline 1" equalrows="false" columnalign="left">
- <m:mtr>
- <m:mtd>
- <m:mo stretchy="false">{</m:mo>
- <xsl:apply-templates select="*[position()=1]"/>
- <xsl:if test="position() != last()">
- <mo>,</mo>
- </xsl:if>
- </m:mtd>
- </m:mtr>
- <xsl:for-each select = "*[position()>2]">
- <m:mtr>
- <m:mtd>
- <m:mphantom><m:mtext>{</m:mtext></m:mphantom>
- <xsl:apply-templates select="."/>
- <xsl:if test="position() != last()">
- <mo>,</mo>
- </xsl:if>
- </m:mtd>
- </m:mtr>
- </xsl:for-each>
- <m:mtr>
- <m:mtd>
- <m:mo stretchy="false">}</m:mo>
- </m:mtd>
- </m:mtr>
- </m:mtable>
- </xsl:otherwise>
- </xsl:choose>
- </xsl:when>
- <xsl:otherwise>
- <xsl:apply-imports/>
- </xsl:otherwise>
- </xsl:choose>
- </xsl:otherwise>
- </xsl:choose>
-</xsl:template>
-
-<xsl:template match = "m:apply[m:card[1]]">
- <m:mo stretchy="false">|</m:mo>
- <xsl:apply-templates select="*[2]"/>
- <m:mo stretchy="false">|</m:mo>
-</xsl:template>
-
-<!-- *********************************** -->
-<!-- PROOF ELEMENTS -->
-<!-- *********************************** -->
-
-
-
-<!--**********************-->
-<!-- COUNTING -->
-<!--**********************-->
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projects / helm.git / blobdiff