History log of /seL4-l4v-10.1.1/HOL4/src/metis/mlibTermnet.sml
Revision Date Author Comments
# 20bbfd8d 31-Aug-2018 Michael Norrish <Michael.Norrish@nicta.com.au>

Clean up some METIS library syntax (semantically a no-op)

Mostly deleting redundant infix declarations, but some other random
reformatting along the way


# 4761143b 10-Aug-2009 Tjark Weber <Tjark.Weber@cl.cam.ac.uk>

Removed trailing whitespace from all .sml and .sig files.

This affects over 900 files and was done using emacs's delete-trailing-whitespace
function in batch mode. Building the system with Poly/ML and Moscow ML seems to
work, so I'm hoping these changes don't break anything. Please complain if
they do!


# e6f1d9ff 15-Jan-2005 Joe Hurd <joe@gilith.com>

Improvements to Metis made while investigating bad performance reported
by Anthony, Juliano and Mike.


# 8933c9c4 26-May-2004 Joe Hurd <joe@gilith.com>

New version of metis: this one actually goes through the compiler
and runs the selftest!


# 706836b9 14-Jan-2004 Joe Hurd <joe@gilith.com>

Latest version of METIS_TAC.

The biggest change is that scheduling provers is done by number of
inferences, not time used, so METIS_TAC is now completely
deterministic. If it works for you on a subgoal, it will work every
time HOL4 is built.


# 5d643e5d 27-Jun-2003 Joe Hurd <joe@gilith.com>

Fixed a bug discovered by Konrad, where the new version of metis couldn't
prove something the previous version could.


# 91bf4ed0 17-Jun-2003 Joe Hurd <joe@gilith.com>

Version 1.3: 17 June 2002

Goals submitted to MESON_TAC when HOL is built .......... 1953
Proved by MESON_TAC ..................................... 1953
Proved by METIS_TAC within 10s .......................... 1946

Between Versions 1.2 and 1.3

* Implemention of definitional CNF to reduce blow-up in number of
clauses (usually caused by nested boolean equivalences).
* Resolution is more robust and efficient, and includes an option
(off by default) for clauses to inherit ordering constraints.


# c8d258c7 19-Nov-2002 Joe Hurd <joe@gilith.com>

Version 1.2: 19 November 2002

Goals submitted to MESON_TAC when HOL is built .......... 1779
Proved by MESON_TAC ..................................... 1779
Proved by METIS_TAC within 10s .......................... 1774

Between Versions 1.1 and 1.2

* Ground-up reimplementation of the resolution calculus, which now
performs ordered resolution and ordered paramodulation.
* A single entry-point METIS_TAC, which uses heuristics to decide
whether to apply FO_METIS_TAC or HO_METIS_TAC.
* {HO|FO}_METIS_TAC both initially operate in typeless mode, and
automatically try again with types if an error occurs during proof
translation.
* Extensionality axiom now included in HO_METIS_TAC by default.