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'''Klein-Gordon equation:''' (this is not included in 'The Wall', but it has been suggested that perhaps it should have been) | *'''Klein-Gordon equation:''' (this is not included in 'The Wall', but it has been suggested that perhaps it should have been) | ||
: $$\frac{1}{c^2} \frac{\partial^2}{\partial t^2} \psi - \nabla^2 \psi + \frac{m^2 c^2}{\hbar^2} \psi = 0$$ | : $$\frac{1}{c^2} \frac{\partial^2}{\partial t^2} \psi - \nabla^2 \psi + \frac{m^2 c^2}{\hbar^2} \psi = 0$$ | ||
'''[https://en.wikipedia.org/wiki/Curvature_form#Bianchi_identities Bianchi identities]''' | *'''[https://en.wikipedia.org/wiki/Curvature_form#Bianchi_identities Bianchi identities]''' | ||
===== Considered for removal: ===== | ===== Considered for removal: ===== |
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