Bangel Spreadsheets - IF / HOW / THEN logic
Bangel Spreadsheets / Teal
MJ Physics Engineering | Bangel Language | MJos Operating System
Owned and operated by Michael Bangel | Clearwater, Florida
IF / HOW / THEN CONTRACT
IF
A workbook edit supplies typed cells, an expected revision and dependency/simulation context.
HOW
Preserve immutable revisions, deterministic recalculation, concurrency checks and audit evidence; keep Pearl simulation partitions distinct from measured cells.
THEN
Return a new revision with recalculation evidence, or reject/hold a conflict. Results do not authorize external effects.
TYPED EVIDENCE
- Cell: typed measurement or UNKNOWN
- Revision: immutable workbook identity
- DependencyGraph: declared edges
- RecalculationReceipt: exact input/output revisions
FAILURE AND MISSINGNESS
Preserve UNKNOWN separately from zero and source identity separately from truth. Missing required evidence remains a typed error or HOLD under the named profile. Failed permission remains DENY.
PROJECT CHALLENGE
A stale revision or incompatible unit must not overwrite prior work or coerce missing values to zero.
RECONCILIATION
Append later results or discrepancies to the original evidence; do not rewrite a prediction into an earlier observation.
DISCOVERY NAMES
Bangel-SPREADSHEETS; Bangel Spreadsheets
These names aid search; current compiler naming remains Elsa.
SOURCE STATUS AND LIMITS
Historical reference or specification recovered. Its source status remains visible and is not promoted to a current standalone implementation.
Recovered status: documented_reference_mvp_prepasskey.
REFERENCE_MVP_PREPASSKEY
SOURCE REFERENCES
- Recovered nonwhite collection, page 1397
https://drive.google.com/file/d/1RpxuVZjdCHSITNXIZZuWacJ1BNBAPCLv/view#page=1397