34ab0fc3d3
Answers the BLOCK on 302594bf (B1-B3) and its should-fix items: the past-K read and Z-set weights are now checked against a BigRational oracle (the review's F7, F8, F12, F14, F15 now fail by name), a negative power of a unit base has its minimal scale, ExactSum compares values, a forced n/d never reads as infinity, and Interim compares exactly and knows zero without storing.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VdfEGXA7aJ6ftMsCc9PJze