Square-free word 1970-01-01
Star height 1970-01-01
Star height problem 1970-01-01
Straight-line grammar 1970-01-01
String operations 1970-01-01
Substring 1970-01-01
Symbol (formal) 1970-01-01
Syntactic monoid 1970-01-01
Syntactic predicate 1970-01-01
Syntax (logic) 1970-01-01
Syntax diagram 1970-01-01
Terminal yield 1970-01-01
Top-down parsing language 1970-01-01
Trace monoid 1970-01-01
Trace theory 1970-01-01
Unary language 1970-01-01
Unary numeral system 1970-01-01
Unavoidable pattern 1970-01-01
Unrestricted grammar 1970-01-01
Van Wijngaarden grammar 1970-01-01