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Mirrors > Home > ILE Home > Th. List > Mathboxes > bdceqi | GIF version |
Description: A class equal to a bounded one is bounded. Note the use of ax-ext 2119. See also bdceqir 13031. (Contributed by BJ, 3-Oct-2019.) |
Ref | Expression |
---|---|
bdceqi.min | ⊢ BOUNDED 𝐴 |
bdceqi.maj | ⊢ 𝐴 = 𝐵 |
Ref | Expression |
---|---|
bdceqi | ⊢ BOUNDED 𝐵 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | bdceqi.min | . 2 ⊢ BOUNDED 𝐴 | |
2 | bdceqi.maj | . . 3 ⊢ 𝐴 = 𝐵 | |
3 | 2 | bdceq 13029 | . 2 ⊢ (BOUNDED 𝐴 ↔ BOUNDED 𝐵) |
4 | 1, 3 | mpbi 144 | 1 ⊢ BOUNDED 𝐵 |
Colors of variables: wff set class |
Syntax hints: = wceq 1331 BOUNDED wbdc 13027 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1423 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-4 1487 ax-17 1506 ax-ial 1514 ax-ext 2119 ax-bd0 13000 |
This theorem depends on definitions: df-bi 116 df-cleq 2130 df-clel 2133 df-bdc 13028 |
This theorem is referenced by: bdceqir 13031 bds 13038 bdcuni 13063 |
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