## Proof of Identity for Curl of a Cross Product

Theorem

Proof

The left hand side gives

The right hand side gives

Both left and right expressions are antisymmetrical inandand since thecomponents are equal, so must theandcomponents.

Theorem

Proof

The left hand side gives

The right hand side gives

Both left and right expressions are antisymmetrical inandand since thecomponents are equal, so must theandcomponents.