Proofs by Contradiction — Proof Techniques in Theory of Computation
⭐ What Is a Proof by Contradiction? (Simple Words) A proof by contradiction works like this: It’s like pulling a …
⭐ What Is a Proof by Contradiction? (Simple Words) A proof by contradiction works like this: It’s like pulling a …
⭐ What Is a Nonconstructive Proof? A nonconstructive proof demonstrates that something exists without directly building it. You don’t produce: …
⭐ What Is a Constructive Proof? (In Simple Words) A constructive proof shows something exists by explicitly building it. So …
⭐ What Is a Direct Proof? A direct proof is a method where you: It’s like someone tells you: “If …
🌐 What is a Spanning Tree? Take a connected graph (a set of points joined by lines).A spanning tree is: …
🌉 What Is Graph Traversal? Imagine you’re exploring a new city.You start from one place and slowly move to nearby …
What Is a Linked Representation? In this method, the graph is stored using linked lists. For each vertex, we create …
Shortest Path Algorithm Imagine you’re standing in a new city with several streets connecting different places.You want to reach your …
Warshall’s Algorithm Warshall’s Algorithm is a neat trick that answers this question for every pair of vertices in a graph. …
Path Matrix When you start learning graphs, you meet many new terms — adjacency matrix, incidence matrix, degree, and so …