natural logarithm for the extended reals and some simple lemmas #1613
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affeldt-aist
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May 3, 2025
affeldt-aist
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May 3, 2025
affeldt-aist
reviewed
May 3, 2025
| by rewrite (ln0 les0) mulr0 expR0. | ||
| Qed. | ||
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| Lemma powR_eq1 x p : (x `^ p == 1) = (x == 1) || (x < 0) || (p == 0). |
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You may want to try this notation for multiple disjunctions [|| ..., ... | ...].
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I think this only allows for booleans?
affeldt-aist
reviewed
May 3, 2025
affeldt-aist
reviewed
May 3, 2025
affeldt-aist
reviewed
May 3, 2025
affeldt-aist
reviewed
May 3, 2025
affeldt-aist
reviewed
May 3, 2025
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Motivation for this change
the natural logarithm for the extended reals is needed for extending hoelder into the extended reals.
Checklist
CHANGELOG_UNRELEASED.mdReference: How to document
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all compile are preferentially merged into master.
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