...which posits the EXISTENCE of infinite
Sheldons in an infinite number...
The Big Bang Theory Season 3, Episode 3
...and otherwise refusing to acknowledge
your EXISTENCE.
The Big Bang Theory Season 2, Episode 8
...for the EXISTENCE
of galactic dark matter.
The Big Bang Theory Season 2, Episode 11
Corn dogs didn't come into EXISTENCE
till the first half of the 20th century.
The Big Bang Theory Season 2, Episode 2
...he wrote a paper
postulating the EXISTENCE...
The Big Bang Theory Season 6, Episode 3