From 44b1164d8db5ad2613e20503b98aa09b6bc9ba7d Mon Sep 17 00:00:00 2001
From: gui1223 <167750254+gui1223@users.noreply.github.com>
Date: Mon, 22 Apr 2024 17:03:42 +0800
Subject: [PATCH] Update oo-design.md

I noticed a potential typo in the code. It seems like 'Neural network is defined' should be changed to 'Neural network is not defined'.
---
 chapter_linear-regression/oo-design.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/chapter_linear-regression/oo-design.md b/chapter_linear-regression/oo-design.md
index e78786f063..f00cce695f 100644
--- a/chapter_linear-regression/oo-design.md
+++ b/chapter_linear-regression/oo-design.md
@@ -194,7 +194,7 @@ class Module(d2l.nn_Module, d2l.HyperParameters):  #@save
         raise NotImplementedError
 
     def forward(self, X):
-        assert hasattr(self, 'net'), 'Neural network is defined'
+        assert hasattr(self, 'net'), 'Neural network is not defined'
         return self.net(X)
 
     def plot(self, key, value, train):