Sets -Basic Notations SnT intersection sr{xIx∈S and x∈T} SUT union s{x xES orx∈T} S-T difference 些{xIx∈S and x年T} P(S) powerset ef{TlT≤S} [m,n] integer range s{x|m≤x≤n 5/40Sets – Basic Notations S ∩ T intersection def = {x | x ∈ S and x ∈ T} S ∪ T union def = {x | x ∈ S or x ∈ T} S − T difference def = {x | x ∈ S and x 6∈ T} P(S) powerset def = {T | T ⊆ S} [m, n] integer range def = {x | m ≤ x ≤ n} 5 / 40