diff --git a/slides/Makefile b/slides/Makefile
index d20caa4c5f846f5dd6eaef09c7b819d91fdc8616..578d0f73aeb974a9acd57451fcae4d8a5b48f7bd 100644
--- a/slides/Makefile
+++ b/slides/Makefile
@@ -1,6 +1,6 @@
 PDFOPTIONS = -t beamer
 # PDFOPTIONS += -F pantable
-PDFOPTIONS += -F mermaid-filter
+# PDFOPTIONS += -F mermaid-filter
 PDFOPTIONS += --highlight-style my_highlight.theme
 PDFOPTIONS += --pdf-engine xelatex
 PDFOPTIONS += -V theme:metropolis
diff --git a/slides/figs/kruskal_enonce.png b/slides/figs/kruskal_enonce.png
deleted file mode 100644
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diff --git a/slides/figs/kruskal_exercice.png b/slides/figs/kruskal_exercice.png
deleted file mode 100644
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diff --git a/slides/figs/kruskal_solution.png b/slides/figs/kruskal_solution.png
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diff --git a/slides/figs/kruskal_solution_exercice.png b/slides/figs/kruskal_solution_exercice.png
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