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spelled out the statement of the quantum master Ward identity and proof of its equivalence to the quantum master equation (before renormalization): here
(still need to expand/polish the former entry itself)
I have worked on master Ward identity. Added stage-wise discussion of how the abstract “quantum master Ward identity” eventually relates to the usual Ward identities in the sense of statements about quantum (non-)conservation of classically conserved currents. Then I re-wrote the lines in the Idea-section to go along with this.
Next I should write out concrete examples, like the chiral anomaly. Still chasing signs…
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