Webb3 feb. 2024 · Definition. The (set) difference between two sets S and T is written S ∖ T, and means the set that consists of the elements of S which are not elements of T : x ∈ S ∖ T x ∈ S ∧ x ∉ T. It can also be defined as: S ∖ T = { x ∈ S: x ∉ T } S ∖ T = { x: x ∈ S ∧ x ∉ T } WebbSet-theoretic notation An Introduction to Proof Theory: Normalization, Cut-Elimination, and Consistency Proofs Oxford Academic End Matter B Set-theoretic notation Get …
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