feat(Commutation): prove angularMomentumSqr_commutation_angularMomentum#989
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pitmonticone wants to merge 2 commits intoleanprover-community:masterfrom
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feat(Commutation): prove angularMomentumSqr_commutation_angularMomentum#989pitmonticone wants to merge 2 commits intoleanprover-community:masterfrom
angularMomentumSqr_commutation_angularMomentum#989pitmonticone wants to merge 2 commits intoleanprover-community:masterfrom
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…tum` Co-authored-by: Aristotle (Harmonic) <aristotle-harmonic@harmonic.fun>
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| simp only [smul_lie, sum_lie, leibniz_lie] | ||
| simp only [angularMomentum_commutation_angularMomentum] | ||
| simp only [comp_sub, comp_add, sub_comp, add_comp, comp_smul, smul_comp] | ||
| simp only [smul_add, smul_sub, Finset.sum_add_distrib, Finset.sum_sub_distrib, | ||
| ← Finset.smul_sum] | ||
| dsimp only [kroneckerDelta] | ||
| simp only [Nat.cast_ite, Nat.cast_one, CharP.cast_eq_zero, mul_ite, mul_one, mul_zero, | ||
| ite_smul, zero_smul] | ||
| simp_rw [Finset.sum_ite_eq' Finset.univ, Finset.mem_univ, if_true] |
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Here also with combining the simps
jstoobysmith
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awaiting-author
Co-authored-by: Aristotle (Harmonic) <aristotle-harmonic@harmonic.fun>
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This PR adds proofs autoformalised by @Aristotle-Harmonic.
Co-authored-by: Aristotle (Harmonic) aristotle-harmonic@harmonic.fun