Robert Allan JamesandClaude Sonnet 5
6f59e4f27c
Both words' real blockers are vm_find_word (name resolution, still unmodelled everywhere in this suite) and a de->func != defer_runtime identity check (unmodellable -- word_table exposes no per-entry function identity). Sidestepped the same way physics_freeze_words.c's FREEZE-WORD/UNFREEZE-WORD/etc. already do: parameterised over an explicit target_wid_opt :: nat option (whatever vm_find_word would have resolved) and is_defer_word :: bool (the identity check's result). Given both, forth_is_full's DF write and forth_defer_fetch_full's DF read are fully modelled via dict_write_df/de_df, including IS's own real stack-underflow guard and both words' ds_full push guard. defer_runtime itself remains unmodelled -- it's a structurally different DF usage (the DF value is used as a dispatch target via word_table, gap c, not just returned to the caller like the other DF-reading words). Full suite (54 theories) verifies green. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
proof/
Isabelle/HOL theory files providing machine-checkable proofs of determinism and correctness for StarForth. 24 theory files covering all 7 feedback loops, core word categories, and the word-level ACL system.
Running proofs
isabelle build -D proof/
Requires an Isabelle installation. See docs/01-getting-started/DEVELOPER.md.
Theory files
Foundations
| File | Covers |
|---|---|
StarForth_Base.thy |
Base definitions and type system |
StarForth_Correctness.thy |
Overall correctness |
StarForth_Transition.thy |
State transitions |
StarForth_Concurrent.thy |
Concurrency properties |
StarForth_Mutex.thy |
Mutual exclusion |
Physics loops (1–7)
| File | Loop |
|---|---|
StarForth_Loop1_Heat.thy |
Execution heat tracking |
StarForth_Loop2_Window.thy |
Rolling window of truth |
StarForth_Loop3_Decay.thy |
Linear decay |
StarForth_Loop4_Pipeline.thy |
Word transition prediction |
StarForth_Loop5_WinInf.thy |
Window width inference |
StarForth_Loop6_DecayInf.thy |
Decay slope inference |
StarForth_Loop7_Heartrate.thy |
Adaptive heartrate |
Word categories
StarForth_Arithmetic_Words.thy, StarForth_Stack_Words.thy,
StarForth_Logical_Words.thy, StarForth_Memory_Words.thy,
StarForth_Return_Stack_Words.thy, StarForth_Q48_16.thy
ACL system (Phase 6)
| File | Property |
|---|---|
ACL_Pin_Monotone.thy |
Pin is one-way |
ACL_Inherit_Clears_Pin.thy |
Inheritance clears pin |
ACL_TTL_Bounded.thy |
TTL stays within bounds |
ACL_Emergency_Bypass.thy |
Emergency console bypass |
ACL_No_Escalation.thy |
No privilege escalation |
See also
ROOT— Isabelle project manifest- Project root