本文在中间逻辑中引入了良构范式的概念,为该类范式的研究提出了一个通用方法,并应用该方法证明了HT逻辑是存在一般蕴含范式的最弱中间逻辑,经典命题逻辑CPL是存在限制蕴含范式的仅有中间逻辑.
We introduce a concept of well-formed normal forms in intermediate logics, and put forward a general method to investigate them. By applying this method, we show that HT is the weakest intermediate logic with general implicational normal form and that CPL is the only intermediate logic with restricted implicational normal form.