Set Theory
by Kegler

Across 1 Ted comes back wearing fur, all set (10) 7 Initially, fundamentals of calculus intrigue mathematical set (4) 9 Purloined set heartless Leon redistributed (6) 10 Surprisingly ring mother in England after the first game involving sets (3,5) 11 Set off for foreign range (5) 12 Deemed crazy about bachelor, first of debutantes set in (8) 13 Pet doctor doesn't have an agent that sets the pace (8) 14 Reportedly disparage groove set in an arrow (4) 16 Line in cooking vessel's set of instructions (4) 17 Chapter's heading typed in, set equidistant from the margins (8) 20 Hop as bat flies around bar set in the shower (4,4) 22 Set of mature women excluded (5) 24 Post office is not upset about one set (8) 25 Certain baseball players receiving last of set warnings (6) 26 Jet set behind quiet demand for attention (4) 27 Set cool client dancing (10)

Down 2 Former spouse rejects picture; not part of the set? (5) 3 Broken in, then leg set straight (9) 4 Primate set the staff practice (8) 5 Rev from the South set off after green kernels (7) 6 Reflectively roll commercial, essentially set in European waterway (6) 7 Enamored, accepts unsatisfactory set up (5) 8 Mentioned having cup instead of teaspoon set out (9) 13 Those who set the sequence of colors surrounding Los Angeles team's debut (9) 14 Most specific sign set in treehouse (9) 15 Become set in one's ways without women, Nathaniel (8) 18 Half of them give a bad review to train set on a board (7) 19 Certain set of twelve heading north, starting to come help Australia (6) 21 Army has one set higher (5) 23 Patricia and I circle furniture set site (5)

Solution