Notes concerning “Kleene algebras”

• Some notes on compiling and notations for grammars, starting from the inspiring RPN example in Parson 02021-01-15 (updated 02021-12-31) (15 minutes)
• The algebra of N-ary relations 02021-06-14 (updated 02021-07-27) (4 minutes)
• Example based regexp 02021-10-24 (updated 02021-12-30) (5 minutes)