j-bob's Introduction

The Little Prover

This repository contains "J-Bob", the proof assistant from "The Little Prover" by Daniel P. Friedman and Carl Eastlund, published by MIT Press in 2015. We include the necessary code to run J-Bob in ACL2 and Scheme, as well as a transcript of the proofs in the book. J-Bob is also included in the Dracula package for Racket.

Example of using J-Bob in Scheme, in the scheme/ subdirectory:

;; Load the J-Bob language:
(load "j-bob-lang.scm")
;; Load J-Bob, our little proof assistant:
(load "j-bob.scm")
;; Load the transcript of all proofs in the book:
(load "little-prover.scm")
;; Run every proof in the book, up to and including the proof of align/align:
(dethm.align/align)

Example of using J-Bob in ACL2, in the acl2/ subdirectory:

;; Load the J-Bob language:
(include-book "j-bob-lang")
;; Load J-Bob, our little proof assistant:
(include-book "j-bob")
;; Load the transcript of all proofs in the book:
(include-book "little-prover")
;; Run every proof in the book, up to and including the proof of align/align:
(dethm.align/align)

Example of using J-Bob in Racket, using the Dracula package:

;; Load the J-Bob language:
(include-book "j-bob-lang" :dir :teachpacks)
;; Load J-Bob, our little proof assistant:
(include-book "j-bob" :dir :teachpacks)
;; Load the transcript of all proofs in the book:
(include-book "little-prover" :dir :teachpacks)
;; Run every proof in the book, up to and including the proof of align/align:
(dethm.align/align)

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