# Fermion non-conservation
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## [fermions non-conservation in models of particle physics](https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=e9a5a89c6853c281181d4509ef18bec489007258)
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## NOT in superconductivity!!!
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see Leggett's writings
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# Parents
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* Electroweak Interaction⏎