The Wikipedia article details the Logic Theorist, created in 1956 by Allen Newell, Herbert A. Simon, and Cliff Shaw. Widely considered the first AI program, it successfully proved 38 of the first 52 theorems in Principia Mathematica, even discovering more elegant proofs than those originally crafted by Russell and Whitehead.
Jeff Shrager has reanimated LT in IPL-V with a new implementation.
Information Processing Language (IPL) is a programming language created by Allen Newell, Cliff Shaw, and Herbert A. Simon at RAND Corporation and the Carnegie Institute of Technology in 1956. IPL introduced concepts like list processing, dynamic memory allocation, recursion, and cooperative multitasking. It was an assembly language for manipulating lists and influenced several early AI programs. However, it was soon replaced by Lisp due to its more powerful features and simpler syntax.
