appaxiom, autosolve, dopth and chainprops are accessed by
psnj CMD instead of a binary psnj-CMD

qfo, spec, pvs_cert, pvs_connectives, propositional_connectives, lhol

Allow evaluation of arbitrary lambdapi code

Extra theories added as requires in the input

The standard input may depend on arbitrary module

Does not prefix first order connectives while printing,
Explicit terms
Use different signature states

Drop TPTP related code