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Proof step 23 from proof intshiftright-ls-01 (previous step)

# int2bits(i) = m + 1, mklist(i < 0, i→n(j)) + int2bits(i) = true ' + bits, j < 32, 0 ≤ j ⊦ mklist(¬ 0 < i, i→n(j)) + int2bits(i) = [], i = 0, 0 < bits2uint((false ' + bitsinvert(sublist(0, m, bits)))+1) ↔ ¬ 0 < i

User applied rule case distinction

And obtained the following new goals

Proof step 24:
0 < bits2uint((false ' + bitsinvert(sublist(0, m, bits)))+1), # int2bits(i) = m + 1, mklist(i < 0, i→n(j)) + int2bits(i) = true ' + bits, j < 32, 0 ≤ j ⊦ ¬ 0 < i, mklist(¬ 0 < i, i→n(j)) + int2bits(i) = [], i = 0
Proof step 27:
¬ 0 < i, # int2bits(i) = m + 1, mklist(i < 0, i→n(j)) + int2bits(i) = true ' + bits, j < 32, 0 ≤ j ⊦ 0 < bits2uint((false ' + bitsinvert(sublist(0, m, bits)))+1), mklist(¬ 0 < i, i→n(j)) + int2bits(i) = [], i = 0

Rule argument

pos: right 3

Proof step 23 from proof intshiftright-ls-01 (previous step)

User applied rule case distinction

And obtained the following new goals

Rule argument

Additional information