Files
LithosAnanake/proof
Robert Allan JamesandClaude Sonnet 5 d59a913e13 proof/: close the data-field (DF) gap for CREATE/VARIABLE/CONSTANT
Adds de_df :: cell to dict_entry (StarForth_Base.thy) -- the DF cell
modelled as a plain value, closing gap (b) for every word that only
reads/writes it through its OWNING entry. Confirmed by grep this record
has exactly one construction site in the whole 52-theory suite
(dict_insert_entry), so the field addition's blast radius is contained
to StarForth_Defining_Words.thy alone -- full suite still verifies
unchanged elsewhere.

dict_write_df writes an existing entry's DF by word_id. forth_create_full/
forth_variable_full/forth_constant_full now compose the DF write in,
making CREATE/VARIABLE/CONSTANT the first three FULLY modelled words in
this file (guard through parse through insertion through the DF write --
nothing left unmodelled per word except the pin-shadow name-scan guard,
sidestepped the same way as everywhere else in this suite).

Their runtime companions (defining_runtime_create/_variable/_constant --
confirmed byte-identical C bodies) share one new definition,
forth_runtime_read_df, gated on ds_full matching vm_push's real internal
check. Required adding current_executing_word_id to vm_state (mirrors
vm->current_executing_entry, word-id-indexed like latest_id).

DEFER and : remain at their previous closure level: DEFER's DF write was
already implicitly closed (de_df=0 at creation matches its explicit
*df=0), but its own runtime is a fundamentally different DF usage
(dispatch reassignment via a stored pointer, gap c, not a plain value);
: has no vm_state field for vm->compiling_word tracking.

Full suite (54 theories) verifies green.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-15 05:40:02 -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