added deriv.ML: Abstract derivations based on raw proof terms.
Pure: The Pure Isabelle System
This directory contains the ML source files for Pure Isabelle, which
is the basis for all object-logics. The Isabelle/Pure image may be
compiled in batch mode like this:
isatool make Pure
Developers may want to produce a RAW image that merely consists of the
ML compiler with the compatibility setup of ML-Systems/ preloaded:
isatool make RAW
Now the Pure session may be compiled interactively as follows:
isabelle -u RAW
See ROOT.ML for further information.
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