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The G2CrossProduct module (fano_lines, epsilon, cross product theorems) was isolated in the blueprint dependency graph. This adds abbrevs in Certificate.lean to create edges connecting the cluster:

  • fano_lines_count
  • epsilon_antisymm
  • G2_cross_bilinear
  • G2_cross_antisymm
  • G2_cross_norm (Lagrange identity)
  • cross_is_octonion_structure
  • G2_dim_from_stabilizer

Also adds gift_G2_cross_product_certificate theorem for explicit graph connections.

The G2CrossProduct module (fano_lines, epsilon, cross product theorems)
was isolated in the blueprint dependency graph. This adds abbrevs in
Certificate.lean to create edges connecting the cluster:

- fano_lines_count
- epsilon_antisymm
- G2_cross_bilinear
- G2_cross_antisymm
- G2_cross_norm (Lagrange identity)
- cross_is_octonion_structure
- G2_dim_from_stabilizer

Also adds gift_G2_cross_product_certificate theorem for explicit
graph connections.
@gift-framework gift-framework merged commit a4d39af into main Dec 25, 2025
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3 participants