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Mirrors > Home > MPE Home > Th. List > Mathboxes > ssltleft | Structured version Visualization version GIF version |
Description: A surreal is greater than its left options. Theorem 0(ii) of [Conway] p. 16. (Contributed by Scott Fenton, 7-Aug-2024.) |
Ref | Expression |
---|---|
ssltleft | ⊢ (𝐴 ∈ No → ( L ‘𝐴) <<s {𝐴}) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fvexd 6771 | . 2 ⊢ (𝐴 ∈ No → ( L ‘𝐴) ∈ V) | |
2 | snex 5349 | . . 3 ⊢ {𝐴} ∈ V | |
3 | 2 | a1i 11 | . 2 ⊢ (𝐴 ∈ No → {𝐴} ∈ V) |
4 | leftf 33976 | . . . 4 ⊢ L : No ⟶𝒫 No | |
5 | 4 | ffvelrni 6942 | . . 3 ⊢ (𝐴 ∈ No → ( L ‘𝐴) ∈ 𝒫 No ) |
6 | 5 | elpwid 4541 | . 2 ⊢ (𝐴 ∈ No → ( L ‘𝐴) ⊆ No ) |
7 | snssi 4738 | . 2 ⊢ (𝐴 ∈ No → {𝐴} ⊆ No ) | |
8 | velsn 4574 | . . . 4 ⊢ (𝑦 ∈ {𝐴} ↔ 𝑦 = 𝐴) | |
9 | leftval 33974 | . . . . . . . . . 10 ⊢ ( L ‘𝐴) = {𝑥 ∈ ( O ‘( bday ‘𝐴)) ∣ 𝑥 <s 𝐴} | |
10 | 9 | a1i 11 | . . . . . . . . 9 ⊢ (𝐴 ∈ No → ( L ‘𝐴) = {𝑥 ∈ ( O ‘( bday ‘𝐴)) ∣ 𝑥 <s 𝐴}) |
11 | 10 | eleq2d 2824 | . . . . . . . 8 ⊢ (𝐴 ∈ No → (𝑥 ∈ ( L ‘𝐴) ↔ 𝑥 ∈ {𝑥 ∈ ( O ‘( bday ‘𝐴)) ∣ 𝑥 <s 𝐴})) |
12 | rabid 3304 | . . . . . . . 8 ⊢ (𝑥 ∈ {𝑥 ∈ ( O ‘( bday ‘𝐴)) ∣ 𝑥 <s 𝐴} ↔ (𝑥 ∈ ( O ‘( bday ‘𝐴)) ∧ 𝑥 <s 𝐴)) | |
13 | 11, 12 | bitrdi 286 | . . . . . . 7 ⊢ (𝐴 ∈ No → (𝑥 ∈ ( L ‘𝐴) ↔ (𝑥 ∈ ( O ‘( bday ‘𝐴)) ∧ 𝑥 <s 𝐴))) |
14 | 13 | simplbda 499 | . . . . . 6 ⊢ ((𝐴 ∈ No ∧ 𝑥 ∈ ( L ‘𝐴)) → 𝑥 <s 𝐴) |
15 | breq2 5074 | . . . . . 6 ⊢ (𝑦 = 𝐴 → (𝑥 <s 𝑦 ↔ 𝑥 <s 𝐴)) | |
16 | 14, 15 | syl5ibr 245 | . . . . 5 ⊢ (𝑦 = 𝐴 → ((𝐴 ∈ No ∧ 𝑥 ∈ ( L ‘𝐴)) → 𝑥 <s 𝑦)) |
17 | 16 | expd 415 | . . . 4 ⊢ (𝑦 = 𝐴 → (𝐴 ∈ No → (𝑥 ∈ ( L ‘𝐴) → 𝑥 <s 𝑦))) |
18 | 8, 17 | sylbi 216 | . . 3 ⊢ (𝑦 ∈ {𝐴} → (𝐴 ∈ No → (𝑥 ∈ ( L ‘𝐴) → 𝑥 <s 𝑦))) |
19 | 18 | 3imp231 1111 | . 2 ⊢ ((𝐴 ∈ No ∧ 𝑥 ∈ ( L ‘𝐴) ∧ 𝑦 ∈ {𝐴}) → 𝑥 <s 𝑦) |
20 | 1, 3, 6, 7, 19 | ssltd 33913 | 1 ⊢ (𝐴 ∈ No → ( L ‘𝐴) <<s {𝐴}) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 = wceq 1539 ∈ wcel 2108 {crab 3067 Vcvv 3422 𝒫 cpw 4530 {csn 4558 class class class wbr 5070 ‘cfv 6418 No csur 33770 <s cslt 33771 bday cbday 33772 <<s csslt 33902 O cold 33954 L cleft 33956 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-int 4877 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-1o 8267 df-2o 8268 df-no 33773 df-slt 33774 df-bday 33775 df-sslt 33903 df-scut 33905 df-made 33958 df-old 33959 df-left 33961 |
This theorem is referenced by: lltropt 33983 madebdaylemlrcut 34006 |
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