+<xsl:template name="is_simple">
+ <xsl:param name="proof" select="/.."/>
+ <xsl:value-of select="(count($proof/*)=0) or ((name($proof)='APPLY') and (count($proof/*[@sort='Prop' and (name(.)='LAMBDA' or name(.)='LETIN' or name(.)='APPLY' or name(.)='MUTCASE' or name(.)='FIX' or name(.)='COFIX')]) = 0))"/>
+</xsl:template>
+
+<xsl:template name="generate_side_proof">
+ <xsl:param name="proof" select="/.."/>
+<!--
+ <xsl:variable name="is_simple">
+ <xsl:call-template name="is_simple">
+ <xsl:with-param name="proof" select="$proof"/>
+ </xsl:call-template>
+ </xsl:variable> -->
+<xsl:variable name="is_simple" select="(count($proof/*)=0) or ((name($proof)='APPLY') and (count($proof/*[@sort='Prop' and (name(.)='LAMBDA' or name(.)='LETIN' or name(.)='APPLY' or name(.)='MUTCASE' or name(.)='FIX' or name(.)='COFIX')]) = 0))"/>
+ <xsl:choose>
+ <xsl:when test="$is_simple">
+ <xsl:choose>
+ <xsl:when test="name($proof)='APPLY'">
+ <xsl:apply-templates select="$proof" mode="letin"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:apply-templates select="$proof" mode="pure"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:apply-templates select="$proof" mode="noannot"/>
+ </xsl:otherwise>
+ </xsl:choose>
+</xsl:template>
+
+<xsl:variable name="no_subproofs" select="count(*[@sort='Prop' and (name(.)='LAMBDA' or name(.)='LETIN' or name(.)='APPLY' or name(.)='MUTCASE' or name(.)='FIX' or name(.)='COFIX')])"/>