Formalization of Linear Space Theory in the Higher-Order Logic Proving System

<table><tr><td><table class="algorithm" id="figbox2"><tr><td colspan="2">val is_num_field_def = Define′</td></tr><tr><td colspan="2">  num_field ∧s = ∧is_complex_subset ∧ ∧nf_not_empty ∧ ∧membership′.</td></tr></table></td></tr></table>

Journal of Applied Mathematics

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Box 2: Formalization of Linear Space Theory in the Higher-Order Logic Proving System 