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QuLog uses several “reserved words” - a collection of QuProlog atoms that are used for program constructs. The reserved words are listed below.
'!', '&', '->', '..', '..,', ':', '::', '::=', ';', '<<<', '<=', '=>', '=?', '>>>', '?', '?-', '??', '@', '|', '||', '~+>', '~>', act, atomic_action, atomic_tel, case, commit_while, def, default, dyn, except, exists, forall, from, from_thread, fun, mfun, min_time, mrel, or_while, percept, query_at, receive, rel, repeat, retry, start_tel, tel, timeout, to, to_thread, try, until, wait, wait_case
