| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > oaword | Structured version Visualization version GIF version | ||
| Description: Weak ordering property of ordinal addition. (Contributed by NM, 6-Dec-2004.) (Proof shortened by Andrew Salmon, 22-Oct-2011.) |
| Ref | Expression |
|---|---|
| oaword | ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On ∧ 𝐶 ∈ On) → (𝐴 ⊆ 𝐵 ↔ (𝐶 +o 𝐴) ⊆ (𝐶 +o 𝐵))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | oaord 8471 | . . . 4 ⊢ ((𝐵 ∈ On ∧ 𝐴 ∈ On ∧ 𝐶 ∈ On) → (𝐵 ∈ 𝐴 ↔ (𝐶 +o 𝐵) ∈ (𝐶 +o 𝐴))) | |
| 2 | 1 | 3com12 1124 | . . 3 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On ∧ 𝐶 ∈ On) → (𝐵 ∈ 𝐴 ↔ (𝐶 +o 𝐵) ∈ (𝐶 +o 𝐴))) |
| 3 | 2 | notbid 318 | . 2 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On ∧ 𝐶 ∈ On) → (¬ 𝐵 ∈ 𝐴 ↔ ¬ (𝐶 +o 𝐵) ∈ (𝐶 +o 𝐴))) |
| 4 | ontri1 6346 | . . 3 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 ⊆ 𝐵 ↔ ¬ 𝐵 ∈ 𝐴)) | |
| 5 | 4 | 3adant3 1133 | . 2 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On ∧ 𝐶 ∈ On) → (𝐴 ⊆ 𝐵 ↔ ¬ 𝐵 ∈ 𝐴)) |
| 6 | oacl 8459 | . . . . 5 ⊢ ((𝐶 ∈ On ∧ 𝐴 ∈ On) → (𝐶 +o 𝐴) ∈ On) | |
| 7 | 6 | ancoms 458 | . . . 4 ⊢ ((𝐴 ∈ On ∧ 𝐶 ∈ On) → (𝐶 +o 𝐴) ∈ On) |
| 8 | 7 | 3adant2 1132 | . . 3 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On ∧ 𝐶 ∈ On) → (𝐶 +o 𝐴) ∈ On) |
| 9 | oacl 8459 | . . . . 5 ⊢ ((𝐶 ∈ On ∧ 𝐵 ∈ On) → (𝐶 +o 𝐵) ∈ On) | |
| 10 | 9 | ancoms 458 | . . . 4 ⊢ ((𝐵 ∈ On ∧ 𝐶 ∈ On) → (𝐶 +o 𝐵) ∈ On) |
| 11 | 10 | 3adant1 1131 | . . 3 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On ∧ 𝐶 ∈ On) → (𝐶 +o 𝐵) ∈ On) |
| 12 | ontri1 6346 | . . 3 ⊢ (((𝐶 +o 𝐴) ∈ On ∧ (𝐶 +o 𝐵) ∈ On) → ((𝐶 +o 𝐴) ⊆ (𝐶 +o 𝐵) ↔ ¬ (𝐶 +o 𝐵) ∈ (𝐶 +o 𝐴))) | |
| 13 | 8, 11, 12 | syl2anc 585 | . 2 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On ∧ 𝐶 ∈ On) → ((𝐶 +o 𝐴) ⊆ (𝐶 +o 𝐵) ↔ ¬ (𝐶 +o 𝐵) ∈ (𝐶 +o 𝐴))) |
| 14 | 3, 5, 13 | 3bitr4d 311 | 1 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On ∧ 𝐶 ∈ On) → (𝐴 ⊆ 𝐵 ↔ (𝐶 +o 𝐴) ⊆ (𝐶 +o 𝐵))) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 206 ∧ w3a 1087 ∈ wcel 2114 ⊆ wss 3885 Oncon0 6312 (class class class)co 7356 +o coa 8391 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2184 ax-ext 2707 ax-rep 5201 ax-sep 5220 ax-nul 5230 ax-pr 5364 ax-un 7678 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2538 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2810 df-nfc 2884 df-ne 2931 df-ral 3050 df-rex 3060 df-reu 3341 df-rab 3388 df-v 3429 df-sbc 3726 df-csb 3834 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-pss 3905 df-nul 4264 df-if 4457 df-pw 4533 df-sn 4558 df-pr 4560 df-op 4564 df-uni 4841 df-iun 4925 df-br 5075 df-opab 5137 df-mpt 5156 df-tr 5182 df-id 5515 df-eprel 5520 df-po 5528 df-so 5529 df-fr 5573 df-we 5575 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-pred 6254 df-ord 6315 df-on 6316 df-lim 6317 df-suc 6318 df-iota 6443 df-fun 6489 df-fn 6490 df-f 6491 df-f1 6492 df-fo 6493 df-f1o 6494 df-fv 6495 df-ov 7359 df-oprab 7360 df-mpo 7361 df-om 7807 df-2nd 7932 df-frecs 8220 df-wrecs 8251 df-recs 8300 df-rdg 8338 df-oadd 8398 |
| This theorem is referenced by: oaword1 8476 oaass 8485 omwordri 8496 omlimcl 8502 oaabs2 8574 oasubex 43702 oaabsb 43710 omabs2 43748 |
| Copyright terms: Public domain | W3C validator |