Assertion: tree's root | /r/HasAspect | index
Facets:
Source sentences:
text: while its parent (if any) is found at index ⌊ i − 1 2 ⌋ {\displaystyle \left\lfloor {\frac {i-1}{2}}\right\rfloor } (assuming the root has index zero).
text: {i-1}{m}}\right\rfloor } (assuming the root has index zero, meaning a 0-based array).