Bangel Spreadsheets - Syntax and typed expression
Bangel Spreadsheets / Purple
MJ Physics Engineering | Bangel Language | MJos Operating System
Owned and operated by Michael Bangel | Clearwater, Florida
TYPED BANGEL BINDING
- Cell: typed measurement or UNKNOWN
- Revision: immutable workbook identity
- DependencyGraph: declared edges
- RecalculationReceipt: exact input/output revisions
PRECONDITION
A workbook edit supplies typed cells, an expected revision and dependency/simulation context.
SEMANTIC OBLIGATION
Preserve immutable revisions, deterministic recalculation, concurrency checks and audit evidence; keep Pearl simulation partitions distinct from measured cells.
POSTCONDITION
Return a new revision with recalculation evidence, or reject/hold a conflict. Results do not authorize external effects.
COMPILATION RULE
Elsa is the compiler. Use a declared Bangel grammar profile, independently admit the applicable JP representation and execute through Joanna only where that path is implemented. These fields are documentary contract notation, not parser-verified source. A shared .bangel extension does not prove grammar equivalence.
PROFILE RELATIONSHIP
Product profile within Bangel; status from the original product register is retained.
IMPLEMENTATION CHECK
A stale revision or incompatible unit must not overwrite prior work or coerce missing values to zero.
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Historical reference or specification recovered.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