X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2FEnrichment_ch2_8.v;h=87d9aa036780c12a14e2cdaf14cc81ecc46eb543;hb=5f3bdb7947de02d8d60f1af77c999a3c80f7dbba;hp=52a3d2ab9502d135ad59f8f4a3dfa74e24aceaf3;hpb=e928451c4c45cdbdd975bbfb229e8cc2616b8194;p=coq-categories.git

diff --git a/src/Enrichment_ch2_8.v b/src/Enrichment_ch2_8.v
index 52a3d2a..87d9aa0 100644
--- a/src/Enrichment_ch2_8.v
+++ b/src/Enrichment_ch2_8.v
@@ -127,7 +127,10 @@ Lemma ecomp_is_functorial `{ec:ECategory}{a b c}{x}(f:EI~~{V}~~>(a~~>b))(g:EI~~{
    apply ibs.
    clear ibs.
 
-   setoid_rewrite (MacLane_ex_VII_1_1 (x~~>a) (a~~>b)).
+   set (MacLane_ex_VII_1_1 (a~~>b) (x~~>a)) as q.
+   simpl in q.
+   setoid_rewrite <- q.
+   clear q.
    setoid_rewrite juggle3.
    set (fmor_preserves_comp ((x ~~> a) ⋊-)) as q.
    simpl in q.