deletions | additions       diff --git a/c) Imposing a restriction.tex b/c) Imposing a restriction.tex  index 86e7dfa..b072627 100644  --- a/c) Imposing a restriction.tex  +++ b/c) Imposing a restriction.tex 
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A_2 &= \Big( 2\delta(x,i) - 1 \Big)\Big( i-\delta(x,i) \Big)\\  &= 2i\delta(x,i) + \delta(x,i) - 2\delta(x,i)^2 - i\\  T(i,x) &= A_1 + A_2\\  &= 2i\delta(x,i)+ \delta(x,i)  - \delta(x,i)^2 - i \end{align*}  \end{subequations}