How to prove 0 = 1

The building I live in has tons of Graffiti on the walls of the hallways and common spaces. The graffiti, however, is not the usual type. Only in a place like Berkeley will you find Niche exerpts and math graffiti. Yes I said math graffiti.
On almost every bathroom stall in the Math Building (Evans Hall), you will find . For those of you who haven't been in a math class recently, that evaluates to 69. In my house, there is a particular piece of math graffiti I enjoy. It is a way to prove 0 = 1. I'm not very good at using LaTeX but here is my attempt.

(Here is the original graffiti)

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