1,749 reputation
1126
bio website public-domain-materials.com
location USA
age 65
visits member for 3 years, 10 months
seen Aug 3 at 9:33

My undergraduate degree was in Mathematics (University of Dallas, 1971). My core interest is General Systems Theory. My career was mostly in computer programming, however, I also taught English, and high-school mathematics, in China for 9 years. I am currently semi-retired, drawing social security, and working on my various websites. As far as I am concerned, anything I do here is in the Public Domain.


Aug
3
revised Help to understand material implication
added remark about a minute of silence
Aug
3
revised Are angles ever multiplied?
fixed typo "not" --> "now"
Jul
27
revised Help to understand material implication
added remark about selfies
Jul
26
asked Have Mori functions been studied under some other name?
Jul
18
revised Help to understand material implication
added the example of the definition of a critical point
Jul
12
awarded  Good Question
Jul
4
awarded  Tumbleweed
Jul
2
awarded  Curious
Jun
27
asked Is there a term in Topology for a boundary point that belongs to a given set?
Jun
21
comment Alternative ways to say “if and only if”?
I didn't realize there was a question what I meant by "fif". Anyway, msouth got it right.
Apr
7
awarded  Necromancer
Feb
14
awarded  Popular Question
Dec
11
awarded  Nice Answer
Nov
18
awarded  Nice Answer
Oct
28
revised Help to understand material implication
added 644 characters in body
Oct
6
awarded  Yearling
Sep
26
revised Help to understand material implication
added 285 characters in body
Sep
23
awarded  Popular Question
Sep
2
revised : Can the canonical theorem on Riemann integrability be taken as the definition of continuity?
added 651 characters in body
Sep
2
asked : Can the canonical theorem on Riemann integrability be taken as the definition of continuity?