TR-CORE-UNITS / Teal / Review draft

Dimensions and measurement uncertainty

Terminology revised · September 12 evidence

Later individual Teal rerun. The reported execution status is historical and is not a new test result.

TEAL LIBRARY RERUN  |  12 SEPTEMBER 2026  |  Michael Patrick Bangel
4
TEAL-RERUN-03-B001 | RELATED_EXECUTION_EVIDENCE_AVAILABLE
TR-CORE-UNITS / Dimensions and measurement uncertainty
IF
Typed quantities or measurements participate in an operation.
HOW
Check compatible dimensions and explicit conversion rules. Preserve absolute uncertainty; reject unsupported
measurement propagation rather than inventing its policy.
THEN
Return the supported typed quantity or the precise diagnostic/HOLD.
CURRENT EVIDENCE
Fresh related language/paper/water checks are in the evidence ledger. The test count is suite evidence, not
proof of every branch in this requirement.
REMAINING REQUIREMENT
Use the source and recorded case evidence to close remaining per-branch, native-host and full-contract coverage gaps.
SOURCE REFERENCES
bangel:language/python/src/bangel/units.py; bangel:language/python/src/bangel/values.py;
bangel:language/python/src/bangel/ir_types.py; associated-core:reference/src/bangel/units.py;
associated-core:reference/src/bangel/values.py; associated-core:reference/src/bangel/ir_types.py

Publication is pending owner review. White papers are excluded.