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-rw-r--r--provider/posts/simmons-intro-to-cat-t/1.1.md3
1 files changed, 1 insertions, 2 deletions
diff --git a/provider/posts/simmons-intro-to-cat-t/1.1.md b/provider/posts/simmons-intro-to-cat-t/1.1.md
index d1ece85..0077d63 100644
--- a/provider/posts/simmons-intro-to-cat-t/1.1.md
+++ b/provider/posts/simmons-intro-to-cat-t/1.1.md
@@ -10,8 +10,7 @@ Sets and functions do form a category $\ca{Set}$.
10<div class="proof"> 10<div class="proof">
11The objects of $\ca{Set}$ are sets and its arrows are functions. 11The objects of $\ca{Set}$ are sets and its arrows are functions.
12 12
13For any set $A$ we construct $\idarr{A}$ by restricting $\id$ to $A$: 13For any set $A$ we identify $\idarr{A}$ with the identity function on $A$ $\id$.
14$$\idarr{A} = \id \upharpoonright A$$
15 14
16$\circ$ is indeed associative. 15$\circ$ is indeed associative.
17</div> 16</div>