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| Mirrors > Home > ILE Home > Th. List > Mathboxes > bdpeano5 | GIF version | ||
| Description: Bounded version of peano5 4743. (Contributed by BJ, 19-Nov-2019.) (Proof modification is discouraged.) |
| Ref | Expression |
|---|---|
| bdpeano5.bd | ⊢ BOUNDED 𝐴 |
| Ref | Expression |
|---|---|
| bdpeano5 | ⊢ ((∅ ∈ 𝐴 ∧ ∀𝑥 ∈ ω (𝑥 ∈ 𝐴 → suc 𝑥 ∈ 𝐴)) → ω ⊆ 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bdpeano5.bd | . . 3 ⊢ BOUNDED 𝐴 | |
| 2 | bj-omex 16951 | . . 3 ⊢ ω ∈ V | |
| 3 | 1, 2 | bdinex1 16908 | . 2 ⊢ (ω ∩ 𝐴) ∈ V |
| 4 | peano5set 16949 | . 2 ⊢ ((ω ∩ 𝐴) ∈ V → ((∅ ∈ 𝐴 ∧ ∀𝑥 ∈ ω (𝑥 ∈ 𝐴 → suc 𝑥 ∈ 𝐴)) → ω ⊆ 𝐴)) | |
| 5 | 3, 4 | ax-mp 5 | 1 ⊢ ((∅ ∈ 𝐴 ∧ ∀𝑥 ∈ ω (𝑥 ∈ 𝐴 → suc 𝑥 ∈ 𝐴)) → ω ⊆ 𝐴) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∈ wcel 2209 ∀wral 2528 Vcvv 2821 ∩ cin 3219 ⊆ wss 3220 ∅c0 3520 suc csuc 4508 ωcom 4735 BOUNDED wbdc 16849 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-nul 4257 ax-pr 4344 ax-un 4576 ax-bd0 16822 ax-bdor 16825 ax-bdex 16828 ax-bdeq 16829 ax-bdel 16830 ax-bdsep 16893 ax-infvn 16950 |
| This theorem depends on definitions: df-bi 117 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-sn 3714 df-pr 3715 df-uni 3934 df-int 3969 df-suc 4514 df-iom 4736 df-bdc 16850 df-bj-ind 16936 |
| This theorem is referenced by: bj-bdfindis 16956 |
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