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In structural proof theory, the nested sequent calculus is a reformulation of the sequent calculus to allow deep inference. [1]

References

  1. ^ Alwen Tiu; Egor Ianovski; Rajeev Goré. "Grammar Logics in Nested Sequent Calculus: Proof Theory and Decision Procedures". p. 1. CiteSeerX  10.1.1.1060.4978.