Mathlib v3 is deprecated. Go to Mathlib v4

Commit 2021-01-26 22:43 531bcd8d

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feat(data/real/{nnreal,ennreal}, topology/instances/ennreal): add of_real_(sum/prod/tsum) for nnreal and ennreal (#5896) We remark that if all terms of a real sum are nonnegative, nnreal.of_real of the sum is equal to the sum of the nnreal.of_real. Idem for ennreal.of_real, for products and tsum.

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