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GMU ANALYTICAL · INDEX PROOF · DR099
Rule 2 Case 2b First Empty Blue — Analytical Coordinate Proof (DR099)
DR099 pairs Rule 2 Case 2b First Empty Blue (Continuing column row r = d_{k-m} + 1 stepping one row past reference) with Analytical Modality (Formal Index Notation): learners verify Cell (k-m, r) is empty while cell (k-m, r-1) above it is populated, master Rule 2 Case 2b First Empty Cell Past Reference returning Blue (≠), and eliminate marking red when an active streak first outgrows the reference column by 1 row.
- Drill Reference ID
- DR099
- Big Road Streaks
- 10 Cols
- Big Eye Boy Total
- 20 Marks
- Small Road Total
- 17 Dots