Name: (email_not_shown)
Date: 08/15/02-01:05:21 PM Z

HiĄŠ Frederik is right that Contract and similar functions expectŠ each Lorentz index to occur at most twiceĄ i.e.Ą it is the Š users responsibility to rename dummy indices.Š You might want to use the Uncontract function if you wantŠ to automate some of this Š In°1Š Š ĄĄHighEnergyPhysics

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