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Journal of Applied Mathematics
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Journal of Applied Mathematics
/
2013
/
Article
/
Figbox 2
/
Research Article
Formalization of Linear Space Theory in the Higher-Order Logic Proving System
Box 2
val is_num_field_def = Define′
num_field
∧
s =
∧
is_complex_subset
∧
∧
nf_not_empty
∧
∧
membership′.