- 27. JUNE * Augustus de Morgan *

Saturday, June 27, 2020

179日目
TOKYO_SUNRISE-04:27
SUNSET-19:01
MOON-05.8 DAYS

_ Here's how to stop the virus from winning
https://www.nationalgeographic.com/science/2020/06/how-to-stop-coronavirus-surges-from-winning-the-war-cvd/

仏壇の日, 奇跡の人の日, 日照権の日, 演説の日, 女性雑誌の日, 秋成忌,
メディア・リテラシーの日, ちらし寿司の日, 独立記念日（ジブチ）,

1806年オーガスタス・ド・モルガン、数学者
* Augustus de Morgan *
http://www.nndb.com/people/437/000097146/

_ Set Theory Proof De Morgan's Law
https://youtu.be/GInKU7qbcb0
_ 2.3 De Morgan's Laws p17
https://youtu.be/W3KRDgiQloQ
_ Set Theory :DeMorgan's law : Written Proof (Part 1)
https://youtu.be/ro1yGNEFSaE
_ Augustus De Morgan
https://youtu.be/pj6y89VDfq0
_ Bossa Nova Trip: Summer Bossa Nova - Relaxing
https://youtu.be/oSfHeJiwNuw

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