]> matita.cs.unibo.it Git - helm.git/history - matita/matita/library/didactic/exercises/natural_deduction1.ma
Stuff moved from old Matita.
[helm.git] / matita / matita / library / didactic / exercises / natural_deduction1.ma
2010-09-30 Claudio Sacerdoti... Stuff moved from old Matita.