original_query: What is the significance of C.A.R. Hoare's UTP in the field of computer science?
query: What is the significance of C.A.R. Hoare's UTP in the field of computer science?
answer: C.A.R. Hoare's UTP (Unifying Theories of Programming) is based on Eric Hehner's predicative programming, and it is considered the simplest and most comprehensive formal methods.