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| | MathTensor Usage Messages |
 | | MakeSumRange[expr,{la,ala,bla,-4,-5},{cla,-6,-7}] means that the specific dummy index la appearing in exp r will be summed over the values that follow it in the list, namely, ala, bla, -4, and -5. |
 | | aIndices are made available by the command AddIndexTypes and are input by typing ala, alb,... |
 | | RiemannCyclicSecondThreeRule[la,lb,lc,ld] performs the cyclic identity on lb, lc, and ld in an expression using expr/.RiemannCyclicSecondThreeRule[la,lb,lc,ld]. |
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