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| Mirrors > Home > MPE Home > Th. List > Mathboxes > bj-fldssdrng | Structured version Visualization version GIF version | ||
| Description: Fields are division rings. (Contributed by BJ, 6-Jan-2024.) |
| Ref | Expression |
|---|---|
| bj-fldssdrng | ⊢ Field ⊆ DivRing |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-field 20882 | . 2 ⊢ Field = (DivRing ∩ CRing) | |
| 2 | inss1 4189 | . 2 ⊢ (DivRing ∩ CRing) ⊆ DivRing | |
| 3 | 1, 2 | eqsstri 3984 | 1 ⊢ Field ⊆ DivRing |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∩ cin 3905 ⊆ wss 3906 CRingccrg 20362 DivRingcdr 20879 Fieldcfield 20880 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-ext 2737 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2744 df-cleq 2757 df-clel 2840 df-v 3459 df-in 3913 df-ss 3923 df-field 20882 |
| This theorem is used by: bj-flddrng 37992 bj-rrdrg 37993 |
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