Results 148 issues of affeldt-aist

##### Motivation for this change This PR defines `esum` using `finite_set` instead of `fset`. TODO: ~- rename `fsets`~ (not sure anymore... maybe `fsubsets`?) some small proofs become useless but on...

##### Motivation for this change integration over a scaled measure (useful to deal with probabilities) ##### Things done/to do - [ x] added corresponding entries in `CHANGELOG_UNRELEASED.md` ~~- [ ]...

TODO: - [ ] changelog

https://github.com/math-comp/analysis/blob/2ae3b628d12cacdc000c4cd70e6f3cae26ecf429/theories/Rstruct.v#L502-L671 It looks like we do not use these lemmas anymore and since there are already bigmax/bigmin lemmas (see e.g. PR #712 ) in master should we think about removing...

https://github.com/math-comp/analysis/blob/d46de60331c7e4ba0f88d31fe11de87484d7b8ed/theories/ereal.v#L2037 https://github.com/math-comp/analysis/blob/d46de60331c7e4ba0f88d31fe11de87484d7b8ed/theories/ereal.v#L2266 https://github.com/math-comp/analysis/blob/d46de60331c7e4ba0f88d31fe11de87484d7b8ed/theories/ereal.v#L2279 (also `lee_pmul2l` and `lee_pmul2r`)

enhancement :sparkles:

- from strict to large - also adds a few lemmas to `ereal.v` closed #122 @CohenCyril This is globally getting a bit bigger (only a few proofs are shortened). I...

experiment :test_tube:

There are redundancies between `altreals/realseq.v` (which predates MathComp-Analysis) and the newer `sequences.v`. How should we factorize? Related issue: "The merge of sequences and sums over general sets (see `esum.v` and...

question :question:
renaming/refactoring :wrench:

Think of a naming scheme a la `finmap`?

enhancement :sparkles:

TODO: revise the use of floor and ceil once ~~math-comp/math-comp#682 is merged into MathComp~~ requiring MC >= 2.1.0

https://github.com/math-comp/analysis/blob/22bb6cc4adc629f47b4ec03ef38eb2138ed2c9a5/theories/topology.v#L3013-L3016