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## Jesse's Girl

#### Associativity

$$\big(\textbf{B}^m,(X,\textbf{A}^n)_\alpha,Y,\textbf{C}^p\big)_\beta=\big(\textbf{B}^m,X,(\textbf{A}^n,Y)_\gamma,\textbf{C}^p\big)_\delta$$

With associativity we can move variables out of one function and into another. Unfortunately, not even allowing truth functions to change will guaranty that associativity will work for a pair of functions.

This section explores the situations where associativity is possible and what truth functions will result.

### A Story Begins

$$\big(\textbf{B}^m,(X,\textbf{A}^n)_\alpha,Y,\textbf{C}^p\big)_\beta=\big(\textbf{B}^m,X,(\textbf{A}^n,Y)_\gamma,\textbf{C}^p\big)_\delta\ \Leftrightarrow\ \big((X)_{\alpha_i},Y\big)_{\beta_j}=\big(X,(Y)_{\gamma_i}\big)_{\delta_j}\ \forall\ i,j$$

First thing's first. This section breaks down the general form of associativity to one involving only two variables and semi-parses of the component and principal operators.