Student in Abe’s mathematics course at Columbia.

S1E2 - Attended class the morning after Joel left Midge. Provided all the correct answers to Abe’s questions.

S2E3 - In class, Lance tries to look smart by bringing up Georg Cantor’s work on infinity. Abe shuts this down, however, and immediately segues into talking about Henri Poincaré, earning Lance a smug glance from Truman. Abe then realizes that he has to leave early to meet Rose, so he continues the lecture on the move until he reaches the class and is bowled over by the sight of a nude model, promptly ending the lecture.

S2E3 - Truman passes a note to Abe in his office, telling him to meet with Simon.

S2E9 - Truman is absent from Abe’s Differential Equations class. Lance explains why to Abe.

S3E7 - Feeling nostalgic, Abe returns to Columbia, where he finds Professor Lerman teaching his old class, greets his old students (including Abbie, Truman and Lance), and gives an inspirational speech.

TRUMAN: Because once it's reduced to echelon form, there's only one independent vector.
– S1E2

ABE: This calls to mind another mathematician I discussed in my office with Truman just last Tuesday. Truman, you took notes that day. Please share them with the class.
TRUMAN: Stop it. Get away! I bruise easy!
– S2E3

TRUMAN: Give him air, guys, give him air!
LANCE: Yeah, he just saw a naked man.
ABE: I'm okay, oh, my God.
TRUMAN: We need crowd control here!
– S2E3

ABE: And for the last time… where is Truman?
LANCE: He's transferred.
ABE: Transferred? Why?
LANCE: His mother said it was taking too much out of him.
– S2E9

ABE: So good to see all of you. How are you doing? Truman, you look well. Your complexion, it's so clear.
TRUMAN: I've been sleeping wonderfully since… well, I last saw you.
– S3E7

ABE: I made you break out in hives and run home to your mommies.
TRUMAN: For the record, I didn't run. I didn't.
– S3E7

2. Ya Shivu v Bolshom Dome Na Kholme

3. The Punishment Room

7. Marvelous Radio

• List of Characters