diff --git a/docs/api/srfi/143.md b/docs/api/srfi/143.md
index 3763ba9f..b3abae04 100644
--- a/docs/api/srfi/143.md
+++ b/docs/api/srfi/143.md
@@ -10,24 +10,24 @@ See the [SRFI document](http://srfi.schemers.org/srfi-143/srfi-143.html) for mor
 [`fx-least`](#fx-least)
 
 ## Predicates
-[`fixnum?`](#fixnum?)
-[`fx=?`](#fx=?)
-[`fx<?`](#fx<?)
-[`fx>?`](#fx>?)
-[`fx<=?`](#fx<=?)
-[`fx>=?`](#fx>=?)
-[`fxzero?`](#fxzero?)
-[`fxpositive?`](#fxpositive?)
-[`fxnegative?`](#fxnegative?)
-[`fxodd?`](#fxodd?)
-[`fxeven?`](#fxeven?)
+[`fixnum`](#fixnum?)
+[`fx`](#fx=?)
+[`fx-1`](#fx<?)
+[`fx-2`](#fx>?)
+[`fx-3`](#fx<=?)
+[`fx-4`fx>=?)
+[`fxzero`](#fxzero?)
+[`fxpositive`](#fxpositive?)
+[`fxnegative`](#fxnegative?)
+[`fxodd`](#fxodd?)
+[`fxeven`](#fxeven?)
 [`fxmax`](#fxmax)
 [`fxmin`](#fxmin)
 
 ## Basic arithmetic
-[`fx+`](#fx+)
+[`fx-5`](#fx+)
 [`fx-`](#fx-)
-[`fx*`](#fx*)
+[`fx-6`](#fx*)
 [`fxneg`](#fxneg)
 [`fxquotient`](#fxquotient)
 [`fxremainder`](#fxremainder)
@@ -46,7 +46,7 @@ See the [SRFI document](http://srfi.schemers.org/srfi-143/srfi-143.html) for mor
 [`fxbit-count`](#fxbit-count)
 [`fxlength`](#fxlength)
 [`fxif`](#fxif)
-[`fxbit-set?`](#fxbit-set?)
+[`fxbit-set`](#fxbit-set?)
 [`fxcopy-bit`](#fxcopy-bit)
 [`fxfirst-set-bit`](#fxfirst-set-bit)
 [`fxbit-field`](#fxbit-field)