Skip to main content
Super TutorResources
Chapter 12 of 12
QuestionsNotesFlashcardsSummaryFormulasQuizConceptsSyllabusPlan
Revision Notes

Discrete Mathematics

Tamil Nadu Board · Class 12 · Mathematics

Quick revision notes for Discrete Mathematics — Tamil Nadu Board Class 12 Mathematics. Key concepts, formulas, and definitions for last-minute revision.

43 questions27 flashcards5 concepts

Interactive on Super Tutor

Studying Discrete Mathematics? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for revision notes and more.

Try Super Tutor — Free

1,000+ Class 12 students started this chapter today

Key Topics to Revise

1

12.1 & 12.2 Introduction and Binary Operations

  • Discrete Mathematics deals with finite or countably infinite sets, unlike continuous mathematics which involves uncountable real numbers
  • A binary operation (*) on a non-empty set S is a rule that assigns a unique element of S to every ordered pair (a,b) from S × S
  • For a binary operation to be valid, it must satisfy the CLOSURE PROPERTY: a*b must always be in S
2

12.3 Mathematical Logic - Statements and Connectives

  • A STATEMENT (or PROPOSITION) is a declarative sentence that is either TRUE or FALSE, but never both or neither
  • Not all sentences are statements: questions, commands, exclamations, and paradoxes are not statements
  • Truth value T (true) = 1, Truth value F (false) = 0
3

12.3.3-12.3.5 Tautology, Contradiction, Equivalence, and Laws

  • TAUTOLOGY: A statement formula that is ALWAYS TRUE, regardless of truth values of component statements (denoted 𝕋)
  • CONTRADICTION: A statement formula that is ALWAYS FALSE, regardless of truth values of component statements (denoted 𝔽)
  • CONTINGENCY: A statement formula that is neither tautology nor contradiction - has both T and F in truth table

Get complete notes with diagrams and examples

Full Notes

Key Concepts

A binary operation * onEvery binary operation can satisfy variousAn algebraic structure is a nonA Boolean matrix contains only entriesModular arithmetic involves finding remainders when

Frequently Asked Questions

What are the important topics in Discrete Mathematics for Tamil Nadu Board Class 12 Mathematics?
Key topics in Discrete Mathematics include Discrete Mathematics – Complete Chapter Overview, Overview of Discrete Mathematics showing its definition, distinction from continuous mathematics, applications, and main topics, Flowchart showing the verification process for whether an operation is binary on a given set. These are the concepts Tamil Nadu Board Class 12 examiners draw on most — study them first, then practise related questions.
How to score full marks in Discrete Mathematics — Tamil Nadu Board Class 12 Mathematics?
Understand the core concepts first, then work through the 43 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Discrete Mathematics

All 12 chapters — Tamil Nadu Board Class 12 Mathematics Revision Notes

For serious students

Get the full Discrete Mathematics chapter — for free.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for Tamil Nadu Board Class 12 Mathematics.

Try Super Tutor Free
Try the full chapter — Free