<xsl:template match="LETIN" mode="pure">
<m:apply helm:xref="{@id}">
- <m:csymbol>letin</m:csymbol>
+ <m:csymbol>let_in</m:csymbol>
<m:bvar>
<m:ci>
<xsl:call-template name="insert_subscript"><xsl:with-param name="node_value"><xsl:value-of select="letintarget/@binder"/></xsl:with-param></xsl:call-template>