To my great embarrassment and for the profit of future generations, let me note that whenever I mentioned the (non-existing) "derivation of crossing symmetry," I meant the CPT theorem (a statement later corrected during the unrecorded exercise session.) For this and other numerous mistakes and inaccuracies that I have committed, may the devil himself carry me into the abyss of shame.
To my great embarrassment and for the profit of future generations, let me note that whenever I mentioned the (non-existing) "derivation of crossing symmetry," I meant the CPT theorem (a statement later corrected during the unrecorded exercise session.) For this and other numerous mistakes and inaccuracies that I have committed, may the devil himself carry me into the abyss of shame.