We present a cut-free sequent calculus for a class of first-order theories in negation normal form which include coherent and co-coherent theories alike. All structural rules, including cut, are admissible.

中文翻译：

---

否定范式中相干理论的削减消除

我们为一类否定范式的一阶理论提出了一种无割序贯演算，其中包括相干理论和协相干理论。所有结构规则，包括剪切，都是可接受的。