Extra 9 / 12 · Structure
Unit standards and cancellation
A journey combines speed with elapsed time. A fuel calculation uses litres per 100 km. Both invite cancellation, but a matching dimension is not permission to ignore its tick scale.
Selected result
What remains connected
What is checked, and where this example stops
The selected cancellation read records one matched hour pair, preserves both authored orders and the standard, refuses km versus 100 km cancellation, and accepts matching 100 km ticks.
This example reads unit participation. It does not divide current values, convert quantities implicitly, or establish the domain for numeric division.