aboutsummaryrefslogtreecommitdiff
path: root/doc
diff options
context:
space:
mode:
authorVincent Laporte2019-08-05 11:35:10 +0000
committerVincent Laporte2019-08-05 11:35:10 +0000
commitfcdfbddbd75218a6d67c965ce363fb2a8984e224 (patch)
treed6338f37975a8ffefa31543bddfdd65c6935de96 /doc
parent5f7c88d0835631ed4fdaf6dc056c958bf8865b56 (diff)
parent08c9ac8e0919ed7e6c001542c2094640f1d7bd73 (diff)
Merge PR #10445: Split constructive and classical axioms for real numbers
Ack-by: Zimmi48 Ack-by: silene
Diffstat (limited to 'doc')
-rw-r--r--doc/changelog/10-standard-library/10445-constructive-reals.rst12
-rw-r--r--doc/stdlib/index-list.html.template3
2 files changed, 15 insertions, 0 deletions
diff --git a/doc/changelog/10-standard-library/10445-constructive-reals.rst b/doc/changelog/10-standard-library/10445-constructive-reals.rst
new file mode 100644
index 0000000000..d69056fc2f
--- /dev/null
+++ b/doc/changelog/10-standard-library/10445-constructive-reals.rst
@@ -0,0 +1,12 @@
+- New module `Reals.ConstructiveCauchyReals` defines constructive real numbers
+ by Cauchy sequences of rational numbers. Classical real numbers are now defined
+ as a quotient of these constructive real numbers, which significantly reduces
+ the number of axioms needed (see `Reals.Rdefinitions` and `Reals.Raxioms`),
+ while preserving backward compatibility.
+
+ Futhermore, the new axioms for classical real numbers include the limited
+ principle of omniscience (`sig_forall_dec`), which is a logical principle
+ instead of an ad hoc property of the real numbers.
+
+ See `#10445 <https://github.com/coq/coq/pull/10445>`_, by Vincent Semeria,
+ with the help and review of Guillaume Melquiond and Bas Spitters.
diff --git a/doc/stdlib/index-list.html.template b/doc/stdlib/index-list.html.template
index 8b5ede7036..dcfe4a08f3 100644
--- a/doc/stdlib/index-list.html.template
+++ b/doc/stdlib/index-list.html.template
@@ -514,7 +514,9 @@ through the <tt>Require Import</tt> command.</p>
</dt>
<dd>
theories/Reals/Rdefinitions.v
+ theories/Reals/ConstructiveCauchyReals.v
theories/Reals/Raxioms.v
+ theories/Reals/ConstructiveRIneq.v
theories/Reals/RIneq.v
theories/Reals/DiscrR.v
theories/Reals/ROrderedType.v
@@ -559,6 +561,7 @@ through the <tt>Require Import</tt> command.</p>
theories/Reals/Ranalysis5.v
theories/Reals/Ranalysis_reg.v
theories/Reals/Rcomplete.v
+ theories/Reals/ConstructiveRcomplete.v
theories/Reals/RiemannInt.v
theories/Reals/RiemannInt_SF.v
theories/Reals/Rpow_def.v