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15-317 Constructive Logic
Assignments

  • There are 10 homework assignments, worth a total of 400 points.
  • Some assignments may offer additional problems for extra credit, which is recorded separately.
  • Extra credit will be considered when determining midterm and final grades for borderline cases.
  • Assignments generally are posted Thursday after lecture and are due the following Thursday.
  • Homeworks may require use of the course software, or simply a write-up with pencil and paper.
  • Machine-checked assignment must be submitted via the course software before the start of lecture on the due date.
  • Written homeworks are to be handed in at the beginning of lecture on the due date.
  • We will try our best to return graded homework during the lecture following the due date.
  • For typesetting deductions in LaTeX, we use proof.sty
Date Assignment Due Solutions
Sep 6 Homework 1: Natural Deduction (Tutch requirements, LaTeX)   Thu Sep 13 Tutch, Written
Sep 13 Homework 2: Proof Terms and Substitution (Tutch requirements, LaTeX)   Thu Sep 20 Tutch, Written
Sep 20 Homework 3: Quantifiers and Metatheorems (Tutch requirements, LaTeX)   Thu Sep 27 Tutch, Written
Sep 27 Homework 4: Sequent Calculus and Natural Numbers (LaTeX)   Thu Oct 4 Written
Oct 12 Homework 5: Classical Logic (LaTeX)   Thu Oct 18 Written  
Oct 18 Homework 6: Sequent Calculus for Proof Search (Starter code, Test harness)   Thu Oct 25 SML  
Oct 26 Homework 7: Logic Programming in Prolog (Starter code)   Thu Nov 1 Prolog  
Nov 1 Homework 8: Logic Programming in Elf (Starter Code)   Thu Nov 8 Elf  
Nov 20 Homework 9: Dependent Representations (LaTeX, Starter Code)   Thu Nov 29 Elf, Written  
Nov 29 Homework 10: Bracket Abstraction in Twelf (Starter Code)   Thu Dec 6  
Nov 29 Homework Twelf: Bracket Abstraction Metatheory (Starter Code)   Fri Dec 7  

All assignments in this course are individual assignments. The work must be your own. Do not copy any parts of the solution from anyone, and do not look at other students solutions. Do not make any parts of your solutions available to anyone and make sure no one else can read your files. We will rigorously apply the university policy on cheating and plagiarism.

We may modify this policy on some specific assignments. If so, it will be clearly stated in the assignment.

It is always permissible to clarify vague points in assignments, discuss course material from notes or lectures, and to give help or receive help in using the course software such as proof checkers, compilers, or model checkers.

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