Tensor representation Stanleyβs hook content formula The number of semi-standard Young tableaux Ξ of shape π with all Ξ(π,π) β€π is given by πππ=βπ,πβππβπ+πβπ(π,π) where βπ(π,π) is the Hook length. comb Proof proof Very complicated combinatorial proof develop | en | SemBr