René Thiemann
Archive of Formal Proofs 2021.
Abstract
We formally define sunflowers and provide a formalization of the sunflower lemma of Erdős and Rado: whenever a set of size-k-sets has a larger cardinality than (r – 1)^k * k!, then it contains a sunflower of cardinality r.
BibTex
@article{Sunflowers-AFP, author = {René Thiemann}, title = {The Sunflower Lemma of Erdős and Rado}, journal = {Archive of Formal Proofs}, month = feb, year = 2021, note = {\url{https://isa-afp.org/entries/Sunflowers.html}, Formal proof development}, ISSN = {2150-914x},}