Because it's Pi day:
The following proof is simple. = Therefore I provide only the shortest possible and encrypted version of it.
This text is self contained. = The reader is assumed to have a Ph.D. in the field.
Notation. = To disguise the fact that most of this work is copied from the standard text in this subject I have used a different notation.
The last one may seem cynical but the amount of ( literal ) overlap in mathematics books is noteworthy.