diff --git a/doc/stdlib/arrays.rst b/doc/stdlib/arrays.rst
index 2bb990d82abdfe..cfdd23246c0af8 100644
--- a/doc/stdlib/arrays.rst
+++ b/doc/stdlib/arrays.rst
@@ -31,12 +31,6 @@ Basic functions
        julia> size(A,3,2)
        (4,3)
 
-.. function:: iseltype(A,T)
-
-   .. Docstring generated from Julia source
-
-   Tests whether ``A`` or its elements are of type ``T``\ .
-
 .. function:: length(A) -> Integer
 
    .. Docstring generated from Julia source
diff --git a/doc/stdlib/collections.rst b/doc/stdlib/collections.rst
index d04642235e743c..09b8591c15a28a 100644
--- a/doc/stdlib/collections.rst
+++ b/doc/stdlib/collections.rst
@@ -969,18 +969,6 @@ Set-Like Collections
 
    Construct the symmetric difference of sets ``s1`` and ``s2``\ , storing the result in ``s1``\ .
 
-.. function:: complement(s)
-
-   .. Docstring generated from Julia source
-
-   Returns the set-complement of :obj:`IntSet` ``s``.
-
-.. function:: complement!(s)
-
-   .. Docstring generated from Julia source
-
-   Mutates :obj:`IntSet` ``s`` into its set-complement.
-
 .. function:: intersect!(s1, s2)
 
    .. Docstring generated from Julia source
diff --git a/doc/stdlib/libc.rst b/doc/stdlib/libc.rst
index ba36122b740654..aa69cd0875c360 100644
--- a/doc/stdlib/libc.rst
+++ b/doc/stdlib/libc.rst
@@ -44,14 +44,6 @@
 
    Convert a system call error code to a descriptive string
 
-.. function:: GetLastError()
-
-   Call the Win32 ``GetLastError`` function [only available on Windows].
-
-.. function:: FormatMessage(n=GetLastError())
-
-   Convert a Win32 system call error code to a descriptive string [only available on Windows].
-
 .. function:: time(t::TmStruct)
 
    .. Docstring generated from Julia source
@@ -82,22 +74,3 @@
 
    Flushes the C ``stdout`` and ``stderr`` streams (which may have been written to by external C code).
 
-.. function:: msync(ptr, len, [flags])
-
-   .. Docstring generated from Julia source
-
-   Forces synchronization of the :func:`mmap`\ ped memory region from ``ptr`` to ``ptr+len``. Flags defaults to ``MS_SYNC``, but can be a combination of ``MS_ASYNC``, ``MS_SYNC``, or ``MS_INVALIDATE``. See your platform man page for specifics. The flags argument is not valid on Windows.
-
-   You may not need to call ``msync``, because synchronization is performed at intervals automatically by the operating system. However, you can call this directly if, for example, you are concerned about losing the result of a long-running calculation.
-
-.. data:: MS_ASYNC
-
-   Enum constant for :func:`msync`. See your platform man page for details. (not available on Windows).
-
-.. data:: MS_SYNC
-
-   Enum constant for :func:`msync`. See your platform man page for details. (not available on Windows).
-
-.. data:: MS_INVALIDATE
-
-   Enum constant for :func:`msync`. See your platform man page for details. (not available on Windows).
diff --git a/doc/stdlib/numbers.rst b/doc/stdlib/numbers.rst
index bb425552ef9dfb..3632c8be293d08 100644
--- a/doc/stdlib/numbers.rst
+++ b/doc/stdlib/numbers.rst
@@ -246,18 +246,6 @@ General Number Functions and Constants
 
    Test whether a floating point number is not a number (NaN)
 
-.. function:: inf(f)
-
-   .. Docstring generated from Julia source
-
-   Returns positive infinity of the floating point type ``f`` or of the same floating point type as ``f``
-
-.. function:: nan(f)
-
-   .. Docstring generated from Julia source
-
-   Returns NaN (not-a-number) of the floating point type ``f`` or of the same floating point type as ``f``
-
 .. function:: nextfloat(f)
 
    .. Docstring generated from Julia source