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21 Aug 2003: Naturality in B (Right Tightening):If f : A U B′ U , g : B′ B then. ... trB′. AA′,BB′ ((f A′) B′; α; B σ; α1; (B B′) g) (struct)= trA.

28 Aug 2008: RA¥Tr¥T@U $µU U$¡$¢$ª R$TT¡b3rU [ U U$¡$7U$7¥T9¥qµ¢ZN$9µ9¡bTT¡b¡b=[Ð<;Ò7¥T$ª«Z¥T&¡b=Ñ5¥N$ &¡Ä$ r$N¡ @7$9] 7 @R7 rHU7. ... j7 ;U'(jPj$Ê5ª Ê 1F] &Å)¡$$Uª2¡$7$@? ¡bµ$¡b ¡b ¡$@T! $j¡$'U¥ÂT ¡b.ª #))º.

6 Dec 2021: Exercise 2.4. Let X = {a, b, c} with a, b and c distinct. ... Then B(x, 1/j) isopen, but. j=1 B(x, 1/j) = {x} is not.

16 May 2002: Q@D X 0IK3UQ FH0 8jüz3<?:3W]8L_Ó. {"3WYJY 0 X? :.@= 21? X. B=J_Ó. ... E¥»]ªH7 »Ó"//ª«E»L Å"«E¥S«c/ >»]/SÅÊÇ|¥¥]«E»]B//«E/ÄE«Kc p. |/«!

12 Sep 2013: That is b x = θ(b)x for b B+ and x Kθ. ... We can compute that for b B+,log b pn1b+ acts by log θ(b) pR.

18 Sep 2007: If x, t [a, b]. f (t) =n. j=0. f (j)(x). ... b. a. f (x) dx b. a. g(x) dx. Lemma 12.6.

30 Aug 2022: I was asleep at the wheel. Should read(iv) If a a′ and b b′ then a b a′ b′ mod n.Page 124 Proof of Lemma 4.3.10 (ii), ... which simplifies to. b(3 b) (b 1)2c > 1. Page 254 Replace first part of Exercise 9.2.3 as followsExercise 9.2.3 (i) Show that

6 Jul 2004: I = I and (A B) = B A. on the nose, and similarly for maps. ... a bc d. ). with a C(A, B), b C(C, B), c C(A, C) d C(C, C) using the naturalformula.

27 Aug 2008: rDwhich commutes to! B C. rD WeakeningD Commutation of Contraction! B [!B][!B]C ContractionC. ... rDwhich commutes to 29! B [!B][!B]C. rD ContractionDAgain, rather than presenting the above deductions with terms attached, we give (all) theterm

27 Oct 2016: Hint: Bolzano-Weierstrass.). 3. If A and B are subsets of Rn, let A B = {a b |a A,b B}. ... a) f(x) = sin x2 (b) f(x) = inf{|xn2| |n Z} (c) (sin x3)/(x 1).