Commutative Diagram (thumbnail)
Description:
Commutative diagram: the map φ is surjective by the choice of S and is also injective by the definition of ESx. (Courtesy of Oron Propp. Used with permission.)
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Commutative Diagram (thumbnail)
Alt text:
A commutative diagram consisting of 4-row 3-column grids.
Caption:
Commutative diagram: the map φ is surjective by the choice of S and is also injective by the definition of ESx. (Courtesy of Oron Propp. Used with permission.)
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