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Proof step 24 from proof bitsor-com (
previous step
)
∀ bits, bits1. # bits1 < # false ' → true → bits ≠ [] ∧ bits1 ≠ [] → bitsor(bits, bits1) = bitsor(bits1, bits) ⊦ bits = bitsor(false ', bits), bits = []
User applied rule insert rewrite lemma
And obtained the following new goals
Proof step 25
:
⊦ bits0 ≠ [] ∧ bits = false ' → bitsor(bits, bits0) = bits0
Rule argument
name: or-rec-04 rotate: F subst: [bits0, bits] → [bits, false ']
Additional information
Used terms: bits, false '