41. The ring of covariants is generated by 26 covariants. 42. The ring of covariants is generated by 26 covariants . 43. The number of basic covariants is at least 989. 44. For instance, no vertical automorphism of T is a general covariant transformation. 45. The connection associated with this covariant derivative is completely determined by the tetrad. 46. If s : X \ to Y is a section, its covariant differential 47. Confusingly, both covariant and contravariant four-vectors can be Lorentz covariant quantities. 48. Confusingly, both covariant and contravariant four-vectors can be Lorentz covariant quantities. 49. As discussed above, covariant arrays lead to problems with writes into the array. 50. But languages which emphasize immutable data can make good use of covariant data types.
