Files
LithosAnanake/proof
Robert Allan James e23900d115 proof/: add StarForth_StarForth_Words.thy (starforth_words.c coverage)
5 of 12 words fully modelled: ENTROPY@/ENTROPY! (XT-pop gap sidestepped
same as ACL words, but note this file's is_valid_dict_entry is a real
membership-check safety improvement over acl_words.c's null-only check),
RESET-ENTROPY (dictionary-wide bulk reset, same technique as
ACL-INIT-PRIMITIVES), ZUSE-AUTHENTICATE (single-field set), VERSION
(identity, no stack effect at all). TOP-WORDS/SEED/RANDOM/WAIT get
guard/shape only -- SEED and RANDOM both depend on g_prng_state, a
file-scope C static shared across the whole Tripod fleet (yet another
instance of the recurring file-scope-static-instead-of-per-VM pattern,
here meaning every VM draws from the same RNG stream). WORD-ENTROPY/(-/
INIT not modelled (pure printf / TIB dependency / real filesystem I/O
plus a custom text parser).

Finding: register_starforth_words registers its 10 words, bootstraps
the STARFORTH vocabulary, then re-registers 12 words (same 10 plus
ENTROPY@/ENTROPY!) into that vocabulary context -- noted as the second
file where registration order matters for which body actually runs,
judgment on intentionality deferred to the largely-unmodelled vocabulary
chain mechanics.

Suite now 44 theories, green.
2026-08-14 15:48:21 -04:00
..

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 (17)

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