<!ENTITY proofstep "<emphasis><link linkend='grammar.proofstep'>proof-step</link></emphasis>">
<!ENTITY tactic "<emphasis><link linkend='grammar.tactic'>tactic</link></emphasis>">
<!ENTITY LCFtactical "<emphasis><link linkend='grammar.LCFtactical'>LCF-tactical</link></emphasis>">
- <!ENTITY string "<emphasis><link linkend='grammar.string'>string</link></emphasis>">
+ <!ENTITY qstring "<emphasis><link linkend='grammar.qstring'>qstring</link></emphasis>">
<!ENTITY interpretation "<emphasis><link linkend='grammar.interpretation'>interpretation</link></emphasis>">
]>