| ∀ bits0. # bits0 < # bits → true → true ∈ bits0 +1 ⊦ true ∈ bits +1 |
⊦ bits ≠ [] → (∃ bits0, boolvar. bits = bits0 + boolvar ')
bits ≠ [] → (∃ bits0, boolvar. bits = bits0 + boolvar '), ∀ bits0. # bits0 < # bits → true → true ∈ bits0 +1 ⊦ true ∈ bits +1
Used terms: bits