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Diff — Limit inferior and limit superior

Revision #2601 → #3193 · back to history

modifiedSubsequential limitb84447b64d25
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mathlib.moduleMathlib.Topology.ClusterPtMathlib.Topology.Defs.Filter
modifiedSubadditivity of limit superiorcee4f2831e9c
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note`Filter.limsup_add_le` proves `limsup (u + v) ≤ limsup u + limsup v`.`limsup_add_le` (bare, in the root namespace) proves `limsup (u + v) f ≤ limsup u f + limsup v f` on a suitable ordered add-comm group.
modifiedSuperadditivity of limit inferiord034c2233650
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note`Filter.le_liminf_add` proves `liminf u + liminf v ≤ liminf (u + v)`.`le_liminf_add` proves `liminf u f + liminf v f ≤ liminf (u + v) f` (root namespace, not under `Filter`).
modifiedMultiplicative inequalities for non-negative sequences4b03c6e41f54
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note`Filter.limsup_mul_le`, `Filter.le_liminf_mul`, and `Filter.liminf_mul_le` provide the multiplicative analogues for non-negative functions.`limsup_mul_le`, `le_liminf_mul`, and `liminf_mul_le` (root namespace) provide the multiplicative analogues for eventually non-negative real-valued functions.
modifiedDiscrete metricdfa0706a47f8
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mathlib.moduleMathlib.Topology.Defs.BasicMathlib.Topology.Order
modifiedCluster points of a filter base8c299eb79b88
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mathlib.moduleMathlib.Topology.ClusterPtMathlib.Topology.Defs.Filter
addedExtended real line is a complete lattice731de1d4f921
addedNegation swaps limsup and liminfac3bc01258e3
addedInf and sup bound liminf and limsup328b8684cb9b