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| Mirrors > Home > MPE Home > Th. List > rankr1a | Structured version Visualization version GIF version | ||
| Description: A relationship between rank and 𝑅1, clearly equivalent to ssrankr1 9761 and friends through trichotomy, but in Raph's opinion considerably more intuitive. See rankr1b 9790 for the subset version. (Contributed by Raph Levien, 29-May-2004.) |
| Ref | Expression |
|---|---|
| rankid.1 | ⊢ 𝐴 ∈ V |
| Ref | Expression |
|---|---|
| rankr1a | ⊢ (𝐵 ∈ On → (𝐴 ∈ (𝑅1‘𝐵) ↔ (rank‘𝐴) ∈ 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rankid.1 | . . . 4 ⊢ 𝐴 ∈ V | |
| 2 | 1 | ssrankr1 9761 | . . 3 ⊢ (𝐵 ∈ On → (𝐵 ⊆ (rank‘𝐴) ↔ ¬ 𝐴 ∈ (𝑅1‘𝐵))) |
| 3 | rankon 9721 | . . . 4 ⊢ (rank‘𝐴) ∈ On | |
| 4 | ontri1 6361 | . . . 4 ⊢ ((𝐵 ∈ On ∧ (rank‘𝐴) ∈ On) → (𝐵 ⊆ (rank‘𝐴) ↔ ¬ (rank‘𝐴) ∈ 𝐵)) | |
| 5 | 3, 4 | mpan2 692 | . . 3 ⊢ (𝐵 ∈ On → (𝐵 ⊆ (rank‘𝐴) ↔ ¬ (rank‘𝐴) ∈ 𝐵)) |
| 6 | 2, 5 | bitr3d 281 | . 2 ⊢ (𝐵 ∈ On → (¬ 𝐴 ∈ (𝑅1‘𝐵) ↔ ¬ (rank‘𝐴) ∈ 𝐵)) |
| 7 | 6 | con4bid 317 | 1 ⊢ (𝐵 ∈ On → (𝐴 ∈ (𝑅1‘𝐵) ↔ (rank‘𝐴) ∈ 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 206 ∈ wcel 2114 Vcvv 3442 ⊆ wss 3903 Oncon0 6327 ‘cfv 6502 𝑅1cr1 9688 rankcrnk 9689 |
| 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 2185 ax-ext 2709 ax-rep 5226 ax-sep 5245 ax-nul 5255 ax-pow 5314 ax-pr 5381 ax-un 7692 ax-reg 9511 ax-inf2 9564 |
| 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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-reu 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-pss 3923 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-int 4905 df-iun 4950 df-br 5101 df-opab 5163 df-mpt 5182 df-tr 5208 df-id 5529 df-eprel 5534 df-po 5542 df-so 5543 df-fr 5587 df-we 5589 df-xp 5640 df-rel 5641 df-cnv 5642 df-co 5643 df-dm 5644 df-rn 5645 df-res 5646 df-ima 5647 df-pred 6269 df-ord 6330 df-on 6331 df-lim 6332 df-suc 6333 df-iota 6458 df-fun 6504 df-fn 6505 df-f 6506 df-f1 6507 df-fo 6508 df-f1o 6509 df-fv 6510 df-ov 7373 df-om 7821 df-2nd 7946 df-frecs 8235 df-wrecs 8266 df-recs 8315 df-rdg 8353 df-r1 9690 df-rank 9691 |
| This theorem is referenced by: r1val2 9763 r1pwALT 9772 elhf2 36397 gruex 44683 |
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