`BookProof.ReducedEsa.symmetricOn_redOp` (hP : IsReducingProjection P) {hPD : ∀ x ∈ D, P x ∈ D} (hC : Commutes T hPD) (hT : SymmetricOn D T) : SymmetricOn (redDom P D) (redOp T hP

Initializing...

`BookProof.ReducedEsa.symmetricOn_redOp` (hP : IsReducingProjection P) {hPD : ∀ x ∈ D, P x ∈ D} (hC : Commutes T hPD) (hT : SymmetricOn D T) : SymmetricOn (redDom P D) (redOp T hP · Prove2Me