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1.1k
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Use the laws of logic to show that $[(p \rightarrow q) \hat \ \ \ \sim q]\rightarrow \sim p$ is tautology.
discrete mathematics updated 4.2 years ago by krithikkm200 • 10
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Show that $[(p \rightarrow q) \hat \ \ \ \sim q]\rightarrow \sim p$ is tautology.
discrete mathematics updated 4.2 years ago by krithikkm200 • 10
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By using mathematical induction prove that $1+ a + a^2+....a^n =\dfrac{1-a^{n+1}}{1-a}$ , where n>=0.
discrete mathematics updated 4.2 years ago by krithikkm200 • 10
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Let A=(a, b, c). Show that (P{A}, C) is a poset. Draw its Hasse Diagram. P(A) is the power set of A.
discrete mathematics updated 4.2 years ago by krithikkm200 • 10
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Draw the Hasse diagram of $D_{60}$. Also find whether it is a lattice.
discrete mathematics updated 4.2 years ago by krithikkm200 • 10
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2.2k
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Define Distributive Lattice along with one appropriate example.
discrete mathematics updated 4.2 years ago by krithikkm200 • 10
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Let S = (1, 2, 3, 4, 5) and A = S X S. Define the following relation R on A: (a, b) R (c, d) if and only if ad = bc. Show that R is an equivalence relation and compute A/R.
discrete mathematics updated 4.2 years ago by krithikkm200 • 10
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Find transitive closure using Warshall's Algorithm.
discrete mathematics updated 4.2 years ago by krithikkm200 • 10
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4.5k
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Determine whether the below Hasse diagram represents a lattice
discrete mathematics updated 4.2 years ago by krithikkm200 • 10
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5.9k
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Let A = {1, 2, 3, 4, 5} and R be the relation defined by a R b if and only if a < b. Compute $R, R^2$ and $R^3$ .Draw digraph of $R, R^2$ and $R^3$.
discrete mathematics updated 4.2 years ago by krithikkm200 • 10
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Let A={1,2,3,4,6}=B, a R b if and only if a is multiple of b. Find R. Find each of the Following (i) R(4) (ii) R(6) (iii) R({2,4,6}).
discrete mathematics updated 4.2 years ago by krithikkm200 • 10
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Consider the chain of divisors of 4 and 9, i.e., $L_1$={1, 2, 4} and $L_2$={1, 3, 9}
discrete mathematics updated 4.2 years ago by krithikkm200 • 10
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Draw an ER diagram for university database
database management systems updated 4.2 years ago by krithikkm200 • 10
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3.3k
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Explain advantages of DBMS over file system.
database management systems updated 4.2 years ago by krithikkm200 • 10
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1.5k
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List four significant differences between file processing and database management system
database management systems updated 4.2 years ago by krithikkm200 • 10
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1.4k
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Frame the composition table
discrete mathematics updated 4.2 years ago by krithikkm200 • 10
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1.5k
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What is a database? Explain with examples? Also list the advantages of a database system?
database management systems updated 4.2 years ago by krithikkm200 • 10
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2.9k
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What is view? How is it created or stored?
database management systems updated 4.2 years ago by krithikkm200 • 10
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2.2k
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Explain Generalization, Specialization & Aggregation with the help of an example
database management systems updated 4.2 years ago by krithikkm200 • 10
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8.3k
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Construct an ER diagram for car insurance company that has a set of customers each of whom owns one or more cars. Each car has associated with it zero to any number of recorded accidents
database management systems updated 4.2 years ago by krithikkm200 • 10
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2.7k
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Explain the terms total participation and partial participation with example.
database management systems updated 4.2 years ago by krithikkm200 • 10
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2.1k
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1
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Write a program the display following pattern
structured programming approach updated 4.2 years ago by krithikkm200 • 10
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3.4k
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List ACID properties. Explain usefulness of each.
advanced database management systems updated 4.2 years ago by krithikkm200 • 10
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1.8k
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List ACID properties. Explain usefulness of each.
advanced database management systems updated 4.2 years ago by krithikkm200 • 10
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8.8k
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Discrete Structures. Find the number of integers between 1 and 1000 which are (i) Divisible by 2,3 or 5 (ii) divisible by 3 only but not by 2 nor by 5
discrete mathematics updated 4.2 years ago by krithikkm200 • 10
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