perm filename SLIDES[HPP,DBL] blob
sn#195035 filedate 1976-01-08 generic text, type C, neo UTF8
COMMENT ⊗ VALID 00010 PAGES
C REC PAGE DESCRIPTION
C00001 00001
C00002 00002 .DEVICE XGP
C00003 00003 .COMMENT Facets
C00005 00004 .COMMENT Facets: COMPOSE
C00007 00005 .COMMENT Planning
C00008 00006 .COMMENT Tree of Disc
C00009 00007 .COMMENT Complete the Square
C00013 00008 .COMMENT AM Conjec
C00016 00009
C00019 00010
C00021 ENDMK
C⊗;
.DEVICE XGP
.!XGPCOMMANDS←"/TMAR=50/PMAR=2100/BMAR=50"
.FONT 1 "BASB30"
.FONT 2 "BDR66"
.FONT 4 "BDI40"
.FONT 7 "BDR40"
.FONT 8 "BDR25"
.FONT 9 "GRFX35"
.TURN ON "↑α[]↓_π{"
.TURN ON "⊗" FOR "%"
.TABBREAK
.ODDLEFTBORDER ← EVENLEFTBORDER ← 1000
.PAGE FRAME 54 HIGH 91 WIDE
.AREA TEXT LINES 1 TO 53
.DOUBLE SPACE
.PREFACE 2
.NOFILL
.PREFACE 1
.!XGPLFTMAR←100
.MACRO B ⊂ BEGIN NOFILL SELECT 9 INDENT 0 GROUP PREFACE 0 MILLS TURN OFF "{↑↓}[]α" ⊃
.MACRO E ⊂ APART END ⊃
.NEXT PAGE
.INDENT 0
.SELECT 1
.COMMENT Facets;
.GROUP SKIP 4
.ONCE CENTER SELECT 2
↓_Facets of a Concept_↓
.BEGIN SELECT 2 PREFACE 0
Characterizations
⊗7Name(s)⊗*
⊗7Definitions ⊗*
⊗7Algorithms ⊗*
⊗7Domain/range⊗*
⊗7Intuitions: abstract representations⊗*
Ties to other concepts
⊗7Specializations⊗*
⊗7Generalizations⊗*
⊗7Examples⊗*
⊗7Operations one can do to this concept⊗*
⊗7Conjectures/theorems involving this concept⊗*
⊗7Analogies⊗*
Heuristics
⊗7Worth: Why this concept is worth naming⊗*
⊗7Interest: When an instance of it is (un)interesting⊗*
⊗7Fillin: Hints for filling in parts of instances⊗*
⊗7Suggest new activities for AM to consider⊗*
⊗7Check: things to watch out for⊗*
.END
.SKIP TO COLUMN 1
.COMMENT Facets: COMPOSE;
.GROUP SKIP 4
.ONCE CENTER SELECT 2
↓_Facets of "COMPOSE"_↓
.BEGIN SELECT 2 PREFACE 0
Characterizations
⊗7Name(s): Compose ⊗*
⊗7Definitions: recursive, opaque, wffs⊗*
⊗7Algorithms: opaque, transparent, destructive ⊗*
⊗7Domain/range: Relations x Relations → Relations⊗*
⊗7Intuitions: refiring arrows, time sequence⊗*
Ties to other concepts
⊗7Specializations: Compose f with itself⊗*
⊗7Generalizations: Relation⊗*
⊗7Examples: (Intersect, Complement) → Set-difference⊗*
⊗7Conjec: (AoB)oC ≡ Ao(BoC)⊗*
⊗7Analogies: multiplying two matrices⊗*
Heuristics
⊗7Worth: Primitive. Creates new active Concepts⊗*
⊗7Interest: Domain=Range; both args are interesting⊗*
⊗7Fillin: D/R are Domain(arg1) and Range(arg2)⊗*
⊗7Sugg: Check AoB for properties which A or B have⊗*
⊗7Check: Domain(arg2) should intersect Range(arg1)⊗*
.END
.SKIP TO COLUMN 1
.COMMENT Planning;
.GROUP SKIP 4
.ONCE CENTER SELECT 2
↓_Control Structure_↓
.BEGIN SELECT 7 TABS 15,55 TURN ON "\↑↓←→"
THINGS WORTH DOING
(Fill in exs of Primes)
(Improve algs for Compose)
(Generalize Defn of Equality)
.GROUP SKIP 3
.ONCE CENTER
Select 1 activity
Execute this plan
→Assemble relevant heuristics
.END
.SKIP TO COLUMN 1
.COMMENT Tree of Disc;
.GROUP SKIP 4
.ONCE CENTER SELECT 2
⊗2↓_Graph of Development_↓⊗*
.BEGIN SELECT 7 INDENT 0 PREFACE 0 TURN ON "→∞\α" TABS 30,50,60,70
Bags\Equality\Cross-product
\Numbers\\Projection
\Multiplication
Exponentiation\Divisors
Hyper-exponentiation\Max-Divis\Primes
.END
.SKIP TO COLUMN 1
.COMMENT Complete the Square;
.GROUP SKIP 4
.ONCE CENTER SELECT 2
↓_Complete the Square_↓
.BEGIN SELECT 7 INDENT 0 PREFACE 0 TABS 40,64,75 TURN ON "→∞α{}\" TURN OFF "↑↓"
.SELECT 2
\⊗7count⊗*
Pairs of Bags∞-→α→ Pairs of Numbers
|\\\|
|\\\
|\\\|
|\\\
|\\\|
|\\\
| ⊗7cross-product⊗*\\\| ⊗7(?)⊗*
|\\\
|\\\|
|\\\
|\\\|
|\\\
↓\⊗7count⊗*\\↓
Bags∞-\-∞-\α→ Numbers
.TURN ON "↑↓" SELECT 7
?(x,y) = Count ( Cross-product ( Count↑-↑1(x), Count↑-↑1(y) ) ).
.END
.SKIP TO COLUMN 1
.COMMENT AM Conjec;
.GROUP SKIP 4
.ONCE CENTER SELECT 2
↓_Maximally Divisible Numbers_↓
.BEGIN SELECT 7 INDENT 0 PREFACE 0 TURN ON "↑↓[]{}&" SELECT 2
⊗2Max-divis(N) iff (∀m<n) d(m) < d(n)
if N = ↓2↑a⊗71⊗*↓3↑a⊗72⊗*↓5↑a⊗73⊗*...p⊗7↓k⊗*↑a⊗7k⊗*
⊗2where p↓i is the i↑t↑h prime,
and (a↓i + 1) / (a↓j + 1) "=" log(p↓j ) / log(p↓i)
**************************************************
For example: n could be
2⊗7↑8⊗*3⊗7↑5⊗*5⊗7↑3⊗*7⊗7↑2⊗*11⊗7↑2⊗*13⊗7↑1⊗*17⊗7↑1⊗*19⊗7↑1⊗*23⊗7↑1⊗*29⊗7↑1⊗*31⊗7↑1⊗*37⊗7↑1⊗*41⊗7↑1⊗*43⊗7↑1⊗*47⊗7↑1⊗*53⊗7↑1⊗*
.SELECT 2
(which equals 25,608,675,584).
(a↓i + 1)'s are (9 6 4 3 3 2 2 2 2 2 2 2 2 2 2 2)
n has 3,981,312 divisors.
AM Conjecture says that
n is the smallest integer with that many divisors.
.END
.SKIP TO COLUMN 1