In this paper we give alternative and shorter proofs of three theorems of Chetwynd and Hilton. All these three theorems have been widely used in many research papers.
Citation
H. P. Yap, Z. X. Song. Alternative proofs of three theorems of Chetwynd and Hilton[J], Journal of Combinatorial Mathematics and Combinatorial Computing, Volume 036. 237-246. DOI: .