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Mirrors > Home > ILE Home > Th. List > Mathboxes > bj-omtrans2 | GIF version |
Description: The set ω is transitive. (Contributed by BJ, 29-Dec-2019.) (Proof modification is discouraged.) |
Ref | Expression |
---|---|
bj-omtrans2 | ⊢ Tr ω |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dftr3 4084 | . 2 ⊢ (Tr ω ↔ ∀𝑥 ∈ ω 𝑥 ⊆ ω) | |
2 | bj-omtrans 13848 | . 2 ⊢ (𝑥 ∈ ω → 𝑥 ⊆ ω) | |
3 | 1, 2 | mprgbir 2524 | 1 ⊢ Tr ω |
Colors of variables: wff set class |
Syntax hints: ⊆ wss 3116 Tr wtr 4080 ωcom 4567 |
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-in1 604 ax-in2 605 ax-io 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-13 2138 ax-14 2139 ax-ext 2147 ax-nul 4108 ax-pr 4187 ax-un 4411 ax-bd0 13705 ax-bdor 13708 ax-bdal 13710 ax-bdex 13711 ax-bdeq 13712 ax-bdel 13713 ax-bdsb 13714 ax-bdsep 13776 ax-infvn 13833 |
This theorem depends on definitions: df-bi 116 df-tru 1346 df-nf 1449 df-sb 1751 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ral 2449 df-rex 2450 df-rab 2453 df-v 2728 df-dif 3118 df-un 3120 df-in 3122 df-ss 3129 df-nul 3410 df-sn 3582 df-pr 3583 df-uni 3790 df-int 3825 df-tr 4081 df-suc 4349 df-iom 4568 df-bdc 13733 df-bj-ind 13819 |
This theorem is referenced by: bj-omord 13852 |
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