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Diffstat (limited to 'hol-light/TacticRecording/LIMITATIONS')
| -rw-r--r-- | hol-light/TacticRecording/LIMITATIONS | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/hol-light/TacticRecording/LIMITATIONS b/hol-light/TacticRecording/LIMITATIONS new file mode 100644 index 00000000..56537d47 --- /dev/null +++ b/hol-light/TacticRecording/LIMITATIONS @@ -0,0 +1,18 @@ +ML objects that get recorded need to be promoted +- and the promoted subgoal package commands don't work for unpromoted ML objects +- implementor needs to write promotion functions for each type shape +- implementor needs to apply these promotion functions to lots of tactics/thms +- user needs to promote their own stuff, e.g. their own rules/thms + +Tactic proofs with embedded arbitrary ML are problematic +- sometimes this can still get recorded, and if so then exported ML will work +- but exported ML is unlikely to faithfully reproduce original ML text + +Limitations in HOL Light's pretty printer for HOL terms +- it outputs ambiguous expressions without type annotations +- this is used by my ML exporter + +However, in practice the appraoch works well +- the same old pool of 100 tactics, 100 rules, 1000 theorems get used +- and any promotion that needs doing is easy anyway +- hand tweaks are occasionally required for aribitrary ML and type annotations |