sneeker/lambda-sub
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initial commit: confluence and normalisation

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milner committed 2026-09-22 09:20:00 +02:00
commit 6f513293ca
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graphs/rules.dot
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digraph lambda_sub_cfg {
rankdir=TB;
bgcolor="white";
node [fontname=Inter, fontsize=10];
edge [fontname=Inter, fontsize=9, color="#333333"];
start [label="term", shape=oval, style=filled, fillcolor="#f3f3f3", color="#333333"];
beta [label="(lambda x. t) u", shape=box, style="rounded,filled", fillcolor="#f5f5f5", color="#333333", fontcolor="#333333"];
es [label="t[x/u]", shape=box, style="rounded,filled", fillcolor="#f5f5f5", color="#333333", fontcolor="#333333"];
pure [label="pure term", shape=oval, style=filled, fillcolor="#f3f3f3", color="#333333"];
nf [label="normal form", shape=doublecircle, style=filled, fillcolor="#d9ead3", color="#38761d"];
start -> beta [label="App(Lam,_)"];
start -> es [label="ESub"];
start -> pure [label="BVar/FVar/Lam"];
beta -> es [label="B", color="#990000"];
es -> es [label="R (one occurrence)", color="#674ea7"];
es -> pure [label="Gc (x not in fv)", color="#38761d"];
pure -> pure [label="B under context", color="#990000"];
es -> nf [label="R/Gc normalisation", color="#674ea7"];
}