About the Authors
- David I. Spivak
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* E-mail: dspivak@math.mit.edu
Affiliation Mathematics Department, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- Robert E. Kent
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Affiliation Ontologos, Pullman, Washington, United States of America
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Wrote the paper: DIS REK. Invented Ologs: DIS. Wrote sections 1,2,3,5,6,7: DIS. Wrote section 4: REK.