software/matita/dama
software/matita/contribs/PREDICATIVE-TOPOLOGY
software/matita/contribs/RELATIONAL
+software/matita/contribs/LOGIC
software/matita/contribs/LAMBDA-TYPES/Unified-Sub
software/matita/contribs/LAMBDA-TYPES/Base-1
software/matita/contribs/LAMBDA-TYPES/LambdaDelta-1