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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 2063. See also bdceqir 10635. (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 10633 | . 2 ⊢ (BOUNDED 𝐴 ↔ BOUNDED 𝐵) |
4 | 1, 3 | mpbi 143 | 1 ⊢ BOUNDED 𝐵 |
Colors of variables: wff set class |
Syntax hints: = wceq 1284 BOUNDED wbdc 10631 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-5 1376 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-4 1440 ax-17 1459 ax-ial 1467 ax-ext 2063 ax-bd0 10604 |
This theorem depends on definitions: df-bi 115 df-cleq 2074 df-clel 2077 df-bdc 10632 |
This theorem is referenced by: bdceqir 10635 bds 10642 bdcuni 10667 |
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