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Proof step 7 from proof sgn-mklist (previous step)

∀ boolvar, bits. sgn(mklist(boolvar, m) + sgn(boolvar ' + bits)) = sgn(boolvar ' + bits) ⊦ m = 0, sgn((boolvar ' + mklist(boolvar, m)) + sgn(boolvar ' + bits)) = sgn(boolvar ' + bits)

User applied rule all left

And obtained the following new goals

Proof step 8:
sgn(mklist(boolvar, m) + sgn(boolvar ' + bits)) = sgn(boolvar ' + bits) ⊦ m = 0, sgn((boolvar ' + mklist(boolvar, m)) + sgn(boolvar ' + bits)) = sgn(boolvar ' + bits)

Rule argument

pos: left 1 terms: boolvar, bits abort: F discard: T computed: T

Additional information

Used terms: boolvar, bits