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Proof step 1 from proof rm-vl-lebrefs-subseteq (conclusion)

⊦ (q - v).lebrefs ⊆ q.lebrefs

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ q0 ⊆ q1 → q0.lebrefs ⊆ q1.lebrefs
Proof step 3:
⊦ (q - v).lebrefs ⊆ q.lebrefs, q - v ⊆ q

Rule argument

spec: <toplevel> name: subseteq-lebrefs-subseteq seq: ⊦ q0 ⊆ q1 → q0.lebrefs ⊆ q1.lebrefs subst: [q1, q0] → [q, q - v] flags: <all paths>

Additional information

Used terms: q, q - v