The problem of putting consistent theories together in institutions is dis-cussed. A general necessary condition for consistency of the resulting theory iscarried out, and some sufficient conditions are given for diag...The problem of putting consistent theories together in institutions is dis-cussed. A general necessary condition for consistency of the resulting theory iscarried out, and some sufficient conditions are given for diagrams of theories inwhich shapes are tree bundles or directed graphs. Moreover, some transforma-tions from complicated cases to simple ones are established.展开更多
The concept of institution of variable truth values is introduced and somemain results about institutions are generalized. In particular, some propertiesof institutions of variable truth vaues preserved by change of t...The concept of institution of variable truth values is introduced and somemain results about institutions are generalized. In particular, some propertiesof institutions of variable truth vaues preserved by change of truth values areestablished.展开更多
文摘The problem of putting consistent theories together in institutions is dis-cussed. A general necessary condition for consistency of the resulting theory iscarried out, and some sufficient conditions are given for diagrams of theories inwhich shapes are tree bundles or directed graphs. Moreover, some transforma-tions from complicated cases to simple ones are established.
文摘The concept of institution of variable truth values is introduced and somemain results about institutions are generalized. In particular, some propertiesof institutions of variable truth vaues preserved by change of truth values areestablished.
