CS 421 — Programming Languages
Search
Search
Dark mode
Light mode
Explorer
Dates
April 1st, 2025
April 3rd, 2025
April 6th, 2025
April 8th, 2025
April 10th, 2025
April 15th, 2025
April 17th, 2025
April 22nd, 2025
April 24th, 2025
April 29th, 2025
February 4th, 2025
February 6th, 2025
February 11th, 2025
February 13th, 2025
February 18th, 2025
February 20th, 2025
February 22nd, 2025
February 25th, 2025
February 26th, 2025
February 27th, 2025
January 21st, 2025
January 23rd, 2025
January 28th, 2025
January 30th, 2025
March 2nd, 2025
March 4th, 2025
March 6th, 2025
March 11th, 2025
March 13th, 2025
March 18th, 2025
March 20th, 2025
March 25th, 2025
March 27th, 2025
May 1st, 2025
May 4th, 2025
Docs
Chicago City Scholars
Communication
Creating Your Github Repository
Exam Schedule
How to Succeed in this Course
Lecture Schedule
Office Hours Schedule
Syllabus
Your GitHub Repository
Exams
Final Exam
Midterm 1
Midterm 2
Midterm 3
Lectures
Algebraic Data Types Lecture
Big-Step Semantics Lecture
Combinator Parsing Lecture
Continuation Passing Style Lecture
Course Introduction
Grammars Lecture
Higher Order Functions Lecture
Hoare Semantics Lecture
Interpreters I Lecture
Interpreters II Lecture
Lambda Calculus Lecture
LL Parsing Lecture
Loop Invariants Lecture
LR Parsing Lecture
Macros Lecture
Monads Lecture
Monotype Semantics Lecture
Polytype Semantics Lecture
Prolog Applications Lecture
Prolog Lecture
Prolog's Cut Operator Lecture
Recursion Lecture
Regular Languages Lecture
Small Step Semantics Lecture
State Monad Lecture
Type Classes Lecture
Unification Lecture
Variables Lecture
Staff
Allison Ye
Cody Rivera
Helen Ilkiu
Krushank Bayyapu
Maanav Agrawal
Mattox Beckman
Paul Krogmeier
Shams Alshabani
Uche Uche-Ike
Topics
Edsger W. Dijstra
Pairs
The Applicative Type Class
The Functor Type Class
Videos
Basic Recursion
Big Step Semantics
Church Numerals
Closures
Combinator Parsing
Continuation Passing Style
Dynamic Prolog
Evaluation Order
FIRST Sets
Fixing Non-LL Grammars
FOLLOW Sets
Functors and Applicative
Hoare Semantics
Induction
Interpreters 1
Interpreters 2
Introduction to Grammars
Introduction to Higher Order Functions
Introduction to Semantics
Lambda Calculus
Lambda Calculus Examples
LL Parsing
Loop Invariants
LR Parsing
Macros
Map and Foldr
Monads
Monotype Semantics
Objects
Parameters
Polytype Semantics
Product Types
Prolog
Prolog's Cut Operator
Regular Languages
Right Linear Grammars
Shift Reduce Conflicts
Small Step Semantics
State
State Monad
State Monad Example
Subclasses and Subtyping
Sum Types, Part 1
Sum Types, Part 2
Tail Recursion
The Church-Rosser Property
The CPS Transform
The Y-Combinator
Type Classes
Unification
Variables
Home
❯
Videos
❯
Church Numerals
Church Numerals
Feb 18, 2025
1 min read
Slides
Church Numerals (PDF)
Graph View
Backlinks
Lambda Calculus Lecture