This Registry database contains ONLY .EDU domains. The data in the EDUCAUSE Whois database is provided by EDUCAUSE for information purposes in order to assist in the process of obtaining information about or related to .edu domain registration records. The EDUCAUSE Whois database is authoritative for the .EDU domain. A Web interface for the .EDU EDUCAUSE Whois Server is available at: http://whois.educause.edu By submitting a Whois query, you agree that this information will not be used to allow, enable, or otherwise support the transmission of unsolicited commercial advertising or solicitations via e-mail. The use of electronic processes to harvest information from this server is generally prohibited except as reasonably necessary to register or modify .edu domain names. ------------------------------------------------------------- Domain Name: COLORADO.EDU Registrant: University of Colorado 3645 Marine Street 3645 Marine Street - 445 UCB Boulder, CO 80309-0455 USA Administrative Contact: Domain Admin University of Colorado 3645 Marine Street 3645 Marine Street - 445 UCB Boulder, CO 80309-0455 USA +1.3034922423 [email protected] Technical Contact: Domain Admin University of Colorado 3645 Marine Street 3645 Marine Street - 445 UCB Boulder, CO 80309-0455 USA +1.3034922423 [email protected] Name Servers: A2-67.AKAM.NET A22-67.AKAM.NET A11-66.AKAM.NET A3-66.AKAM.NET A20-65.AKAM.NET A1-153.AKAM.NET Domain record activated: 02-Jun-1986 Domain record last updated: 01-Jul-2026 Domain expires: 31-Jul-2027
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/~casa/teaching/24fa...
Exercise 8.10. If A and B are subsets of a set X, then ( A ∩ B)C = AC ∩ BC . Solution. We have that for an element x ∈ X, x ∈ (A ∩ B)C ⇐⇒ x /∈ (A ∩ B).
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/~casa/teaching/24fa...
Exercise 8.10. If A and B are subsets of a set X, then (A ∩ B )C = AC ∩ BC . Solution. We have that for an element x ∈ X, x ∈ (A ∩ B )C ⇐⇒ x /∈ (A ∩ B ).
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/~kstange/teach/righ...
Try doing that with the right-side left-side proof of 2 = 3 and you'll see what's wrong with it! A nonsense no-good non-proof that 2=3. 0 = 0 this is self ...
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/~kstange/papers/not...
The subgroup of proper Lorentz transforms is denoted by SO(1,3 ) (proper ele- ments have determinant 1). The subgroup of all Lorentz transforms pre- serving both ...
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/~sbc21/teaching/22s...
Prove or disprove: The set { a1 , a2 , a3 , ··· : ai ∈ Z} of infinite sequences of integers is countably infinite. Solution. The set { a1 , a2 , a3 , ··· : ai ∈ Z} of ...
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