Pumping Lemma and Nonregular Languages
🌱 What Is the Pumping Lemma? (In simple words) Think of a DFA like a small machine with a fixed …
IT
Equivalence of Regular Expressions and Regular Languages
🌼 The Big Idea (in simple words) Think of a regular expression (RE) as a recipe.It tells you how to …
Regular Expressions — Theory of Computation
⭐ A Simple Way to Think About Regular Expressions If strings were people in a crowd, then a regular expression …
Closure Under the Regular Operations — Theory of Computation
⭐ Why “closure” matters Closure tells us what we can build using regular languages. If you know regular languages are …
Equivalence of DFAs and NFAs
⭐ Why is this important? It tells us something beautiful: It’s like sketching an idea freely on paper (NFA) and …
Nondeterministic Finite Automata
⭐ Why do we need NFAs? You might ask:“Why use something that gives multiple choices? Isn’t that confusing?” Actually, NFAs …
Regular Operations — Theory of Computation
🌱 The Three Main Regular Operations There are three classic operations every student should know: Let’s explore them in a …
Finite Automaton First Example — Deterministic Finite Automata
🌱 What Exactly Is a DFA?** Think of a DFA as a little robot with: The robot reads a string …
Proof Techniques: Proofs by Induction
🌱 What Is Proof by Induction? Imagine you set up a long line of dominoes on the floor.If: then the …
Proof Techniques: The Pigeonhole Principle
What is the Pigeonhole Principle? The pigeonhole principle says: “If you try to place more objects than the number of …