Course module
Paper 2 | Unit 1 | Discrete Structures and OptimizationNTA-UGC-NET Paper - 2
- Lessons
- 443
- Duration
- 45 hr 1 min
- PYQs
- 321
- Practice
- 1599
11% of this course's PYQ weight is covered in this module.
Syllabus index
Lessons in this module
Propositional and Predicate Logic
Introduction to Propositions, Laws of Contradiction and Excluded Middle
Types of Propositions – Atomic and Compound
Logical Operators – Negation, Conjunction, and Disjunction
Implication and Bi-Conditional Operators in Logic
Types of Logical Cases – Tautology, Contradiction, Contingency, Satisfiability, and Validity
Introduction to First Order Predicate Logic
Quantifiers – Universal and Existential
Practice Problems on Quantifiers and Predicate Logic
Functional Completeness
Questions and Practice Problems on Propositions
Multi-Topic Content (Cross-Concept Material)
Set Theory
Sets, Representation of Sets and Hierarchy of numbers
Finite, Infinite, Countable, and Uncountable Sets
Null, Universal, Subsets, Proper Subsets
Power Set and its Cardinality
Set Operations – Union, Intersection, Set Difference, Symmetric Difference, and Complement
- Set Operations – Union, Intersection, Set Difference, Symmetric Difference, and ComplementPdf
- Complement, Union and Intersection of SetsDrm Video
- Practice QuestionDrm Video
- Set Difference and Symmetric DifferenceDrm Video
- Laws of Set TheoryDrm Video
- 12.5 Practice QuestionDrm Video
- 12.6 Practice QuestionDrm Video
- 12.7 Practice QuestionDrm Video
- 12.8 Practice QuestionDrm Video
- 12.24 Practice QuestionDrm Video
Relations
Cartesian Product, Relation, Inverse & Complement
Reflexive Irreflexive Relation – Count, and Properties
Symmetric Anti-Symmetric Asymmetric Relation and Properties
Transitive Relation – Definition, Count, and Properties
Equivalence Relation, Equivalence Classes, Partitions of a Set
Partial Order Relation – Properties, Partially Ordered Set (Poset), and Total Order Relation
Hasse Diagram, Greatest Element, Least Element, Upper Bound, Lower Bound
- Hasse Diagram, Greatest Element, Least Element, Upper Bound, Lower BoundPdf
- Conversion of POSET to Hasse DiagramDrm Video
- Identify valid Hasse DiagramDrm Video
- Maximal & Minimal ElementDrm Video
- Greatest & Least ElementDrm Video
- Upper Bound & Lower BoundDrm Video
- Least Upper Bound & Greatest Lower BoundDrm Video
Lattice – Definition, Formation, and Examples of Join and Meet Operations
Bounded, Unbounded, Distributive, Complemented Lattices and Boolean Algebr
- Bounded, Unbounded, Distributive, Complemented Lattices and Boolean AlgebraPdf
- Unbounded,Bounded, Complement & Distributed LatticeDrm Video
- Practice Question Part-1Drm Video
- Practice Question Part-2Drm Video
- Practice QuestionDrm Video
- Practice QuestionDrm Video
- 24.5 Practice QuestionDrm Video
- 24.6 Practice QuestionDrm Video
- Gate 1988Drm Video
Functions
Definition of a Function – Domain, Co-domain, Range, and Count of Possible Functions
Composition of Functions – Definition, Properties, and Examples
One-to-One (Injective) Function – Definition, Count, and Properties
Onto (Surjective) Function – Definition, Count, and Properties
Bijective Function – Definition, Count, and Properties
Inverse of a Function – Definition, Existence Conditions, and Examples
Permutation and Combination
Basic Concepts & Counting Principles
Permutations (with & without Repetition)
- Demo: Permutations with No RepetitionStandard Video
- [Notes] Permutations with No RepetitionPdf
- Demo: Permutations with Unlimited RepetitionsStandard Video
- [Notes] Permutations with Unlimited RepetitionsPdf
- Permutations with Limited RepetitionsDrm Video
- [Notes] Permutations with Limited RepetitionsPdf
- Tricks to Solve The Famous MISSISSIPPI Problem in P&CDrm Video
- [Notes] Tricks to Solve The Famous MISSISSIPPI Problem in P&CPdf
- Vowels & Consonants Type Questions in P&CDrm Video
- [Notes] Vowels & Consonants Type Questions in P&CPdf
- Tricks to Solve Questions on Arrangement of LettersDrm Video
- [Notes] Tricks to Solve Questions on Arrangement of LettersPdf
- Tricks to Solve Questions on Arrangement of Digits (1)Drm Video
- [Notes] Tricks to Solve Questions on Arrangement of Digits (1)Pdf
- Tricks to Solve Questions on Arrangement of Digits (2)Drm Video
- [Notes] Tricks to Solve Questions on Arrangement of Digits (2)Pdf
Circular & Grouping Permutations
- Tricks to Solve Grouping Type Questions in P&CDrm Video
- [Notes] Tricks to Solve Grouping Type Questions in P&CPdf
- Tricks for Problems on Choosing Items from Group of ItemsDrm Video
- [Notes] Tricks for Problems on Choosing Items from Group of ItemsPdf
- Circular ArrangementsDrm Video
- [Notes] Circular ArrangementsPdf
- Circular Arrangements on GroupsDrm Video
- [Notes] Circular Arrangements on GroupsPdf
- Tricks to Solve Necklace Based ProblemsDrm Video
- [Notes] Tricks to Solve Necklace Based ProblemsPdf
Combinations (with & without Repetition)
- Combinations with No Repetitions & Unlimited RepetitionsDrm Video
- [Notes] Combinations with No Repetitions & Unlimited RepetitionsPdf
- Solving Some Basic Questions on Permutation & CombinationDrm Video
- [Notes] Solving Some Basic Questions on Permutation & CombinationPdf
- An Important Property (Binomial Theorem)Drm Video
- [Notes] An Important Property (Binomial Theorem)Pdf
- Total Outcomes, MCQ Paper Solving, Unlimited RepetitionsDrm Video
- [Notes] Total Outcomes, MCQ Paper Solving, Unlimited RepetitionsPdf
Special Applied Problems
- Tricks to Solve Questions on Binary StringsDrm Video
- [Notes] Tricks to Solve Questions on Binary StringsPdf
- Trick for Sum of all numbers formed from given digitsDrm Video
- [Notes] Trick for Sum of all numbers formed from given digitsPdf
- Finding Rank of a Word (Concept + Short Trick)Drm Video
- [Notes] Finding Rank of a Word (Concept + Short Trick)Pdf
- Question on Finding Rank of a Word Without RepetitionDrm Video
- [Notes] Question on Finding Rank of a Word Without RepetitionPdf
- Short Trick to Find Rank of a Word With RepetitionsDrm Video
- [Notes] Short Trick to Find Rank of a Word With RepetitionsPdf
- Short Trick to Find Number of HandshakesDrm Video
- [Notes] Short Trick to Find Number of HandshakesPdf
- Chocolate Picking ProblemDrm Video
- [Notes] Chocolate Picking ProblemPdf
- Counting Sticks ApproachDrm Video
- [Notes] Counting Sticks ApproachPdf
- Short Tricks to Solve Dice Sum Problem (1)Drm Video
- [Notes] Short Tricks to Solve Dice Sum Problem (1)Pdf
- Short Tricks to Solve Dice Sum Problem (2)Drm Video
- [Notes] Short Tricks to Solve Dice Sum Problem (2)Pdf
- Conventional Method of Solving Dice Sum ProblemDrm Video
- [Notes] Conventional Method of Solving Dice Sum ProblemPdf
- Short Tricks for Alphabet Selection Problem in P&CDrm Video
- [Notes] Short Tricks for Alphabet Selection Problem in P&CPdf
Advanced Counting Theorems
- Principle of Inclusion & Exclusion, Use of Venn DiagramDrm Video
- [Notes] Principle of Inclusion & Exclusion, Use of Venn DiagramPdf
- Number of Intersection Points & ParallelogramDrm Video
- [Notes] Number of Intersection Points & ParallelogramPdf
- Concept & Short Tricks of Derangement in P&CDrm Video
- [Notes] Concept & Short Tricks of Derangement in P&CPdf
- Important Questions on DerangementsDrm Video
- [Notes] Important Questions on DerangementsPdf
Probability
Basic Concepts and Terminology
- Demo: What is Experiment, Event, Favorable & Total OutcomeStandard Video
- [Notes] What is Experiment, Event, Favorable & Total OutcomePdf
- Demo: What is Sure Event, Impossible Event, Complementary EventStandard Video
- [Notes] What is Sure Event, Impossible Event, Complementary EventPdf
- Short Trick to find total outcomes in an experimentDrm Video
- [Notes] Short Trick to find total outcomes in an experimentPdf
- Mutually Exclusive Events & Exhaustive EventsDrm Video
- [Notes] Mutually Exclusive Events & Exhaustive EventsPdf
- Odds in Favour of an event & Odds Against An EventDrm Video
- [Notes] Odds in Favour of an event & Odds Against An EventPdf
Classical Problems (Cards, Dice, Coins, Digits, Number, Objects)
- Short Tricks to deal with cases of 'At least' & 'At most'Drm Video
- [Notes] Short Tricks to deal with cases of 'At least' & 'At most'Pdf
- Tricks & Techniques to Solve Dice Sum ProblemsDrm Video
- [Notes] Tricks & Techniques to Solve Dice Sum ProblemsPdf
- Tricks & Techniques to Solve Playing Cards ProblemDrm Video
- [Notes] Tricks & Techniques to Solve Playing Cards ProblemPdf
- Finding Probability of 53 Sundays in a Leap YearDrm Video
- [Notes] Finding Probability of 53 Sundays in a Leap YearPdf
Probability Using Venn Diagrams & Set Theory
Graph Theory
Introduction to Graphs – Definitions, Terminology (Loops, Parallel Edges, Adjacent Vertices)
Types of Graphs – Finite, Infinite, Null, Trivial, Complete
Bipartite, Cycle, Regular, and Complement of a Graph
Number of Graphs – Counting of Simple, Undirected, Unlabeled
Degree of Vertex – Isolated and Pendant Vertices, Handshaking Lemma, and Degree Sequence
Minimum and Maximum Degree – Relationships, Degree Constraints, and Havel-Hakimi Theorem
Graph Traversal – Walk, Path, Trail, Circuit, and Connected Graphs
Euler and Hamiltonian Graphs – Definitions, Conditions, and Examples
Planar Graphs – Kuratowski’s Theorems, Homorphism and examples
Euler Formula – Planar Graph Formula, Applications, and Derived Relations
Graph Coloring – Vertex Coloring, Edge Coloring, Chromatic Number, and Coloring Theorems
Trees – Definitions, Properties, Eccentricity, Diameter, Radius, and Center
Spanning Tree and Spanning Forest – Definition, Construction, and Applications
Cut Set and Connectivity – Edge Connectivity, Vertex Connectivity, and Cut Set Concepts
Graph Isomorphism – Definition, Detection, and Problem Solving
Graph Matching – Maximal, Maximum, Perfect Matching, and Related Concepts
Graph Covering – Line and Vertex Covering, Independent Set, and Minimal/Maximal Variants
Group Theory
Closure-Algebraic Structure, Associative-SemiGroup, Identity-Monoid
- Closure-Algebraic Structure, Associative-SemiGroup, Identity-MonoidPdf
- Basics of Group TheoryDrm Video
- Closure Property and Algebraic StructureDrm Video
- Problems on Closure Property and Algebraic StructureDrm Video
- Associative Property and Semi-GroupsDrm Video
- Problems on Associative Property and Semi-GroupsDrm Video
- Identity Property and MonoidDrm Video
- Problems on Identity Property and MonoidDrm Video
Inverse Property and Group
Commutative Property and Abelian Groups
- Commutative Property and Abelian GroupsPdf
- Commutative Property and Abelian GroupDrm Video
- 11.1 Practice QuestionDrm Video
- 11.2 Practice QuestionDrm Video
- 11.3 Practice QuestionDrm Video
- 11.4 Practice QuestionDrm Video
- 11.5 Practice QuestionDrm Video
- 11.6 Practice QuestionDrm Video
- Practice QuestionDrm Video
- 11.4 Practice QuestionDrm Video
Classification of Finite and Infinite Groups
Subgroup Definition, Examples, and Verification Techniques
Determining the Order of Elements within Groups
Digital Systems & Boolean Basics
Boolean Expression
SOP & POS Canonical Forms
Boolean Function Counts
Functional Completeness
Boolean Minimization
K-Map Structure & PIs
- K-Map Structure & PIsPdf
- Basics of SimplificationDrm Video
- Understanding K MAP part 1Drm Video
- Understanding K MAP part 2Drm Video
- Understanding K MAP part 3Drm Video
- POS K MapDrm Video
- What is minimal Boolean expressionDrm Video
- Rules of groupingDrm Video
- Don't care conditionDrm Video
- Practice on K MapDrm Video
- More than one solutionDrm Video
- Prime ImplicantDrm Video
- Practice QuestionDrm Video
- Practice QuestionsDrm Video
- Practice QuestionDrm Video
- Practice QuestionDrm Video
- Solving K Map in reverse fashionDrm Video
Function Equivalence
Logic Circuit Analysis
Adv. Laws & Optimization
Optimization
Introduction to Linear Programming – Problem Structure and Mathematical Model
Canonical and Standard Forms – Representation of LP Constraints
Basic Terminologies in Linear Programming – Feasible, BFS, Optimal
Slack and Surplus Variables – Constraint Conversion Techniques
Graphical Method – Feasible Region, Corner Points, and Optimality
Graphical Method – Special Cases: Unbounded and Infeasible Solutions
Simplex Method – Formulation and Pivot Operations (Part 1)
Simplex Method – Optimality, Unboundedness, and Multiple Solutions (Part 2)
Big M Method – Theory and Solving Artificial Variable Cases
Two Phase Method – Feasibility Computation, Optimality Computation
Methods for Solving LP Problems – Summary of Strategies
Degeneracy – Definition, Effects, and Anti-Cycling Rules
Duality in LP – Concepts, Construction, and Properties
Duality – Example Problems and Case Analysis
Dual Simplex Method – Theory and Solving Infeasible Solutions
Sensitivity Analysis – Objective Coefficients, RHS Variations, Shadow Prices and Allowable Ranges
Transportation Problem – Formulation and Balanced vs Unbalanced Cases
Transportation Problem – NW Corner, Least Cost, and Vogel’s Approximation
Transportation Problem – Optimality Tests (MODI Method)
Assignment Problem – Formulation and Hungarian Method
Nonlinear Programming – Introduction and Problem Structure
Lagrangian Multipliers – Necessary and Sufficient Conditions
Convex Functions – Definition, Properties, and Examples
Module lessons
Previous-year questions
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