P′′ (P double prime) is a primitive computer programming language created by Corrado Böhm in 1964 to describe a family of Turing machines. It provided one of the earliest formulations of the single-entry single-exit principle central to structured programming.
P′′ (P double prime) is a primitive computer programming language created by Corrado Böhm in 1964 to describe a family of Turing machines. It provided one of the earliest formulations of the single-entry single-exit principle central to structured programming.
==Definition== P′′ is formally defined as a set of words on the four-instruction alphabet \{ \, R, \lambda, (, ) \, \}, as follows:
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).