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[[File:Conway relational chart.png|400px|thumb|This example chart shows how 11 new forms can be derived from the cube using 3 operations. The new polyhedra are shown as maps on the surface of the cube so the topological changes are more apparent. Vertices are marked in all forms with circles.]]
In [[geometry]] and [[topology]], '''Conway polyhedron notation''', invented by [[John Horton Conway]] and promoted by [[George W. Hart]], is used to describe [[polyhedron|polyhedra]] based on a seed polyhedron modified by various prefix [[operation (mathematics)|operation]]s.<ref name="SoT">{{cite book
| last1 = Conway | first1 = John | author1-link = John Horton Conway
| last2 = Burgiel | first2 = Heidi
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