On the number of minimal completely separating systems and antichains in a Boolean lattice

An (n)completely separating system C ((n)CSS) is a collection of blocks of [n] = {1,..., n} such that for all distinct a, b ∈ [n] there are blocks A, B ∈C with a ∈ A \ B and b ∈ B \ A. An (n)CSS is minimal if it contains the minimum possible number of blocks for a CSS on [n]. The number of non-isomorphic minimal (n)CSSs is determined for 11 ≤ n ≤ 35. This also provides an enumeration of a natural class of antichains

Graduate Student Recital: Terry Grush, Bassoon; Linda Mack, Piano; Barry Kolman, Clarinet; Wayne Montag, Clarinet; March 19, 1974

Centennial East Recital HallTuesday EveningMarch 19, 19748:15 p.m

Junior Recital: Wayne Montag, Clarinet; Kay Shroyer, Piano; Linda Mack, Piano; Frank Schwarzwalder, Violin; Terry Jares, Violin; April 20, 1975

Hayden AuditoriumSunday EveningApril 20, 19757:00 p.m

On the number of minimal completely separating systems and antichains in a Boolean lattice

An (n)completely separating system C ((n)CSS) is a collection of blocks of [n] = {1,...,n} such that for all distinct a, b Є C with a Є A B and b Є B A. An (n)CSS is minimal if it contains the minimum possible number of blocks for a CSS on [n]. The number of non-isomorphic minimal (n)CSSs is determined for 11 ≤ n ≤ 35. This also provides an enumeration of a natural class of antichains

Wordplay in Shakespeare's Hamlet and the Accusation of Derrida's “Logical Phallusies”

That “Derrida's writing borders on being unreadable” has been maintained by several academics, journalists and students. This essay considers this reaction to Jacques Derrida's writing in relation to a broader history of wordplay and puns. Using Shakespeare's Hamlet as a starting point followed by the infamous letter to The Times that accused Derrida of “logical phallusies”, it argues that if Derrida's writing does border on being unreadable, then, this is the condition of all writing. The essay suggests that rather than suppressing the spectres of Derrida in Shakespeare studies, we should welcome back the aspects of his work that help us to “read and write in the space or heritage of Shakespeare”