The coefficient isn't lambda.
It's lambda SUB one.
The Big Bang Theory Season 10, Episode 20
It just said "Italian SUB."
The Big Bang Theory Season 9, Episode 21
...with a chicken-carbonara SUB
at Quizno's.
The Big Bang Theory Season 1, Episode 3
No, at the SUB shop,
we were only making out.
The Big Bang Theory Season 1, Episode 17
No, a party SUB implies it's a party.
The Big Bang Theory Season 9, Episode 21