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Proof step 4 from proof divides-XornoX-head (previous step)

divides(p ' + P, P1, X, A1) ⊦ XornoX(p, X, A1)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ divides(P, P0, X, A) ↔ (∀ p. p ∈ P → XornoX(p, X, A) ∧ startorfin(p, P0))

Rule argument

spec: inst: name:divides-def seq: ⊦ divides(P, P0, X, A) ↔ (∀ p. p ∈ P → XornoX(p, X, A) ∧ startorfin(p, P0)) subst:[A, X, P0, P] → [A1, X, P1, p ' + P] flags:rewrite, current

Additional information

[Concretesimprules(()), Extraterms((A1XP1p ' + P))]