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Proof step 25 from proof bitsor-bi-zeroes (previous step)

¬ (bits3 + bits1).first ∧ bits3 + bits1 ≠ [] ⊦ # bits3 = 1, bits2uint(bits3 + bits1) = bits2uint(bits1), bits3 = [], true ∈ bits3

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 26:
⊦ # bits3 = 1, bits2uint(bits3 + bits1) = bits2uint(bits1), bits3 = [], bits3 + bits1 = [], true ∈ bits3, bits3.first

Rule argument

Additional information

Used simplifier rules: ⊦ (bits + bits0) + bits1 = bits + bits0 + bits1;% ⊦ bits ≠ [] → ((bits + bits0).first ↔ bits.first);