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| Description: Closure law for multiplication of complex numbers. Axiom 7 of 25 for real and complex numbers, derived from ZF set theory. |
| Ref | Expression |
|---|---|
| axmulcl |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | axmulopr 5285 |
. 2
| |
| 2 | 1 | foprcl 4022 |
1
|