JK Contradance calling
L0 Contradance program
L1 Contradance program
L2 Contradance program
L3 Contradance program
L4 Contradance program
L5 Contradance program
Michael Dyck's Contradance Index
NT & Math Crypto 2016g
Aut2019: MHF3202 09EH (19955) Sets.&.Logic MWF7 [13:55-14:45] LIT207 (CE)
Sets and Logic
are like nitroglycerin, in that one little mis-step leads to the whole
thing blowing up in your face.
There is no partial credit when it comes to Explosives and Quantifiers.
Our Teaching Page
has useful information for students in all of my classes.
It has my schedule,
and Usually Useful Pamphlets.
One of them is the
which gives pointers on what I consider to be good mathematical
Further information is at our
(I email this private URL directly to students).
In all of my courses,
attendance is absolutely required
(excepting illness and religious holidays).
In the unfortunate event that you miss a class, you are
responsible to get all
Notes / Announcements / TheWholeNineYards
from a classmate, or several.
All my classes have a
Please take a gander at
Past courses with notes, exams and links.
Our Home-V now has solns,
complemented by a
Students have nice solns
to zoid tiling of a triangle
zoid tiling of a punctured-triangle.
Essay (V3) had you label the vertices a
You may have found it convenient to print out the
edge-graph of a dodecahedron
for your vertex-label diagrams.
Available is a
template, for folding-together a 3D-dodecahedron.
Our now-full-of-solns Zoidish
Robert Long Prize essay competition,
which is a Good-Thing-to-Do.
- The PList:
Problem List for SeLo (pdf),
The highly-unfinished Primer on cardinality.
- In one convenient location:
SeLo quizzes so far (pdf),
quizzes link, please have read the binomial/multinomial conventions
on page 2, together with
Operations on Sets..
The Lminoish Class-U
now has solns, except for the 3xN Lmino problem, which we covered in class.
And check out
Tilability w.r.t unions.
Related to the exam are Pictures of
Lmino Tilings (txt),
to illustrate a geometric induction-argument.
Available are some
pictures of 3-mino tiling (txt).
- A std proof of the
Inclusion-Exclusion principle (pdf), together
with Candy-Store, Derangement and Stirling-number examples.
- Does Zero = One? (pdf).
Here are some
proofs poofs about which you can post to our Archive.
- Our SeLo syllabus/calendar.
- Exams/notes from previous incarnations:
[which also has Autumn 2009 and Spring 2008].
- Please skim
- The famous On-line Encyclopedia of Integer Sequences, and
W: OEIS history, and a
video with a challenge at the end.
- [Old] Have learned
the Math-Greek alphabet (pdf).
- [Old] Have
read and throughly understood
(up through “Equivalent predicates...”).
- [Old] Have read
and throughly understood the
(up through “Extended Euclidean...”)
From our Teaching Page, have
Lightning-bolt algorithm (pdf)
[pages 1-3. You are not responsible for pages 4,5];
practice sheet for LBolt (pdf)
[print on paper and work through several examples];
Algorithms in Number Theory (pdf)
[you are responsible just for the Iterated Lightning-bolt part, page 1]
The various Math czars who help out:
- "How To Write Proofs" (html), by Prof. Larry W. Cusick,
Examples mostly from Elem. Number Theory; some from Calculus.
- Prof. Christopher Heil's page (pdf) [4 pages, INTRO].
A well written survey of the structure of proofs. Has one example of
- “How to write proofs: a quick guide” by Prof. Eugenia Cheng (pdf)
[17 pages, INTRO].
Good, friendly. She is stricter than I in the ordering of steps in a proof.
Conversely, her write-up is lax in places where I am strict:
- Always use a word/phrase, and never a comma, for
we discover to our delight that .
- She has proof snippets in her examples, but remember
that your proofs must be written as a sequence of
complete, grammatical sentences, correctly punctuated, structured
into coherent paragraphs.
SeLo Individual Project [SIP]
There will be a
to be done individually.
It will be due,
my office door (Little Hall 402, Northeast corner)
2PM, Thursday, 05Dec2019
The project must be carefully typed and
For the typesetting, one possibility
is the (free)
It can be learned in a week.
(It is the archival language of the American Mathematical
At all times have a paper copy you can hand-in; I do
Print out a copy each day, so that you always have the latest version to
hand-in; this, in case your printer or computer fails.
(You are too old for
My dog ate my homework.)
Please follow the guidelines on the
(pdf, 3pages) to earn full credit.
JK Home page