]> matita.cs.unibo.it Git - helm.git/history - helm/software/matita/library/didactic/exercises/natural_deduction_theories.ma
A (boring and long) once-in-a-life exercise on proving a trivial property
[helm.git] / helm / software / matita / library / didactic / exercises / natural_deduction_theories.ma
2008-12-08 Claudio Sacerdoti... A (boring and long) once-in-a-life exercise on proving...