Search for tag: "sets"

Shi and Katz 23 March 2022 Plant Sciences

From  Rob Kerner 0 likes 41 plays 0  

ECS20 - W22 - Lecture 11 (6T): Relations and Functions 3

Lecture 2022-02-08. Equinumerous sets. Another proof that the rationals are countable. Uncountability of the set of all languages over {0,1}. When do things become impractical? Concrete dividing…

From  Phil Rogaway 0 likes 103 plays 0  

ECS20 - W22 - Lecture 10 (5R): Relations and Functions 2

Injective, surjective, and bijective functions. Examples. Two methods to shuffle cards. Countably infinite sets.

From  Phil Rogaway 0 likes 101 plays 0  

ECS20 - W22 - Lecture 8 (4R): Sets 3

Review of strings and languages. Closing a set of languages using some operators. Regular languages. Examples. BYTE, WORD32, and WORD64 as languages computers "like", and how we…

From  Phil Rogaway 0 likes 81 plays 0  

ECS20 - W22 - Lecture 7 (4T): Sets 2

More about sets. Powerset of a set. Cross product of sets. The axiomatic approach to set theory. Languages (sets of strings).

From  Phil Rogaway 0 likes 103 plays 0  

ECS20 - W22 - Lecture 6 (3R): Sets 1

NOTE: "Typo" in what I wrote on one slide: R={x: x \not\in x}. Basics of sets. The only basic vocabulary is \in and \emptyset. Defining other relations: union, intersection complement,…

From  Phil Rogaway 0 likes 122 plays 0  

ECS20 - W22 - Lecture 6 (3R): Sets 1 (full)

Basics of sets. The only basic vocabulary is \in and \emptyset. Defining other relations: union, intersection complement, set difference, symmetric difference. Identities and their proofs, including…

From  Phil Rogaway 0 likes 5 plays 0  

ARE/ECN 115A: Guided Tour of 115A

From  Travis Lybbert 0 likes 204 plays 0  

ECS 220 6a:7.2-2 countability and diagonalization

From  David Doty 0 likes 27 plays 0  

ECS 220 6a:7.1 axiomatic foundation of mathematics

From  David Doty 0 likes 21 plays 0  

ECS 120 10b:2 the real numbers are uncountable and the Continuum Hypothesis

From  David Doty 0 likes 68 plays 0  

ECS 120 10b:1 diagonalization to show a set is smaller than its power set

From  David Doty 0 likes 81 plays 0  

ECS 120 9c:6 R vs. (0,1)

From  David Doty 0 likes 82 plays 0  

ECS 120 9c:5 N vs. {0,1}*

From  David Doty 0 likes 87 plays 0  

ECS 120 9c:1 comparing sizes of sets

From  David Doty 0 likes 94 plays 0  

ECS 120 4a:3 proof DFAs can simulate NFAs with no epsilon-transitions

From  David Doty 1 likes 136 plays 0