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Mirrors > Home > MPE Home > Th. List > ramtlecl | Structured version Visualization version GIF version |
Description: The set 𝑇 of numbers with the Ramsey number property is upward-closed. (Contributed by Mario Carneiro, 21-Apr-2015.) |
Ref | Expression |
---|---|
ramtlecl.t | ⊢ 𝑇 = {𝑛 ∈ ℕ0 ∣ ∀𝑠(𝑛 ≤ (#‘𝑠) → 𝜑)} |
Ref | Expression |
---|---|
ramtlecl | ⊢ (𝑀 ∈ 𝑇 → (ℤ≥‘𝑀) ⊆ 𝑇) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | breq1 4656 | . . . . . . . 8 ⊢ (𝑛 = 𝑀 → (𝑛 ≤ (#‘𝑠) ↔ 𝑀 ≤ (#‘𝑠))) | |
2 | 1 | imbi1d 331 | . . . . . . 7 ⊢ (𝑛 = 𝑀 → ((𝑛 ≤ (#‘𝑠) → 𝜑) ↔ (𝑀 ≤ (#‘𝑠) → 𝜑))) |
3 | 2 | albidv 1849 | . . . . . 6 ⊢ (𝑛 = 𝑀 → (∀𝑠(𝑛 ≤ (#‘𝑠) → 𝜑) ↔ ∀𝑠(𝑀 ≤ (#‘𝑠) → 𝜑))) |
4 | ramtlecl.t | . . . . . 6 ⊢ 𝑇 = {𝑛 ∈ ℕ0 ∣ ∀𝑠(𝑛 ≤ (#‘𝑠) → 𝜑)} | |
5 | 3, 4 | elrab2 3366 | . . . . 5 ⊢ (𝑀 ∈ 𝑇 ↔ (𝑀 ∈ ℕ0 ∧ ∀𝑠(𝑀 ≤ (#‘𝑠) → 𝜑))) |
6 | 5 | simplbi 476 | . . . 4 ⊢ (𝑀 ∈ 𝑇 → 𝑀 ∈ ℕ0) |
7 | eluznn0 11757 | . . . . . 6 ⊢ ((𝑀 ∈ ℕ0 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → 𝑛 ∈ ℕ0) | |
8 | 7 | ex 450 | . . . . 5 ⊢ (𝑀 ∈ ℕ0 → (𝑛 ∈ (ℤ≥‘𝑀) → 𝑛 ∈ ℕ0)) |
9 | 8 | ssrdv 3609 | . . . 4 ⊢ (𝑀 ∈ ℕ0 → (ℤ≥‘𝑀) ⊆ ℕ0) |
10 | 6, 9 | syl 17 | . . 3 ⊢ (𝑀 ∈ 𝑇 → (ℤ≥‘𝑀) ⊆ ℕ0) |
11 | 5 | simprbi 480 | . . . . 5 ⊢ (𝑀 ∈ 𝑇 → ∀𝑠(𝑀 ≤ (#‘𝑠) → 𝜑)) |
12 | eluzle 11700 | . . . . . . . . . 10 ⊢ (𝑛 ∈ (ℤ≥‘𝑀) → 𝑀 ≤ 𝑛) | |
13 | 12 | adantl 482 | . . . . . . . . 9 ⊢ ((𝑀 ∈ 𝑇 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → 𝑀 ≤ 𝑛) |
14 | nn0ssre 11296 | . . . . . . . . . . . 12 ⊢ ℕ0 ⊆ ℝ | |
15 | ressxr 10083 | . . . . . . . . . . . 12 ⊢ ℝ ⊆ ℝ* | |
16 | 14, 15 | sstri 3612 | . . . . . . . . . . 11 ⊢ ℕ0 ⊆ ℝ* |
17 | 6 | adantr 481 | . . . . . . . . . . 11 ⊢ ((𝑀 ∈ 𝑇 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → 𝑀 ∈ ℕ0) |
18 | 16, 17 | sseldi 3601 | . . . . . . . . . 10 ⊢ ((𝑀 ∈ 𝑇 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → 𝑀 ∈ ℝ*) |
19 | 6, 7 | sylan 488 | . . . . . . . . . . 11 ⊢ ((𝑀 ∈ 𝑇 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → 𝑛 ∈ ℕ0) |
20 | 16, 19 | sseldi 3601 | . . . . . . . . . 10 ⊢ ((𝑀 ∈ 𝑇 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → 𝑛 ∈ ℝ*) |
21 | vex 3203 | . . . . . . . . . . 11 ⊢ 𝑠 ∈ V | |
22 | hashxrcl 13148 | . . . . . . . . . . 11 ⊢ (𝑠 ∈ V → (#‘𝑠) ∈ ℝ*) | |
23 | 21, 22 | mp1i 13 | . . . . . . . . . 10 ⊢ ((𝑀 ∈ 𝑇 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → (#‘𝑠) ∈ ℝ*) |
24 | xrletr 11989 | . . . . . . . . . 10 ⊢ ((𝑀 ∈ ℝ* ∧ 𝑛 ∈ ℝ* ∧ (#‘𝑠) ∈ ℝ*) → ((𝑀 ≤ 𝑛 ∧ 𝑛 ≤ (#‘𝑠)) → 𝑀 ≤ (#‘𝑠))) | |
25 | 18, 20, 23, 24 | syl3anc 1326 | . . . . . . . . 9 ⊢ ((𝑀 ∈ 𝑇 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → ((𝑀 ≤ 𝑛 ∧ 𝑛 ≤ (#‘𝑠)) → 𝑀 ≤ (#‘𝑠))) |
26 | 13, 25 | mpand 711 | . . . . . . . 8 ⊢ ((𝑀 ∈ 𝑇 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → (𝑛 ≤ (#‘𝑠) → 𝑀 ≤ (#‘𝑠))) |
27 | 26 | imim1d 82 | . . . . . . 7 ⊢ ((𝑀 ∈ 𝑇 ∧ 𝑛 ∈ (ℤ≥‘𝑀)) → ((𝑀 ≤ (#‘𝑠) → 𝜑) → (𝑛 ≤ (#‘𝑠) → 𝜑))) |
28 | 27 | ralrimdva 2969 | . . . . . 6 ⊢ (𝑀 ∈ 𝑇 → ((𝑀 ≤ (#‘𝑠) → 𝜑) → ∀𝑛 ∈ (ℤ≥‘𝑀)(𝑛 ≤ (#‘𝑠) → 𝜑))) |
29 | 28 | alimdv 1845 | . . . . 5 ⊢ (𝑀 ∈ 𝑇 → (∀𝑠(𝑀 ≤ (#‘𝑠) → 𝜑) → ∀𝑠∀𝑛 ∈ (ℤ≥‘𝑀)(𝑛 ≤ (#‘𝑠) → 𝜑))) |
30 | 11, 29 | mpd 15 | . . . 4 ⊢ (𝑀 ∈ 𝑇 → ∀𝑠∀𝑛 ∈ (ℤ≥‘𝑀)(𝑛 ≤ (#‘𝑠) → 𝜑)) |
31 | ralcom4 3224 | . . . 4 ⊢ (∀𝑛 ∈ (ℤ≥‘𝑀)∀𝑠(𝑛 ≤ (#‘𝑠) → 𝜑) ↔ ∀𝑠∀𝑛 ∈ (ℤ≥‘𝑀)(𝑛 ≤ (#‘𝑠) → 𝜑)) | |
32 | 30, 31 | sylibr 224 | . . 3 ⊢ (𝑀 ∈ 𝑇 → ∀𝑛 ∈ (ℤ≥‘𝑀)∀𝑠(𝑛 ≤ (#‘𝑠) → 𝜑)) |
33 | ssrab 3680 | . . 3 ⊢ ((ℤ≥‘𝑀) ⊆ {𝑛 ∈ ℕ0 ∣ ∀𝑠(𝑛 ≤ (#‘𝑠) → 𝜑)} ↔ ((ℤ≥‘𝑀) ⊆ ℕ0 ∧ ∀𝑛 ∈ (ℤ≥‘𝑀)∀𝑠(𝑛 ≤ (#‘𝑠) → 𝜑))) | |
34 | 10, 32, 33 | sylanbrc 698 | . 2 ⊢ (𝑀 ∈ 𝑇 → (ℤ≥‘𝑀) ⊆ {𝑛 ∈ ℕ0 ∣ ∀𝑠(𝑛 ≤ (#‘𝑠) → 𝜑)}) |
35 | 34, 4 | syl6sseqr 3652 | 1 ⊢ (𝑀 ∈ 𝑇 → (ℤ≥‘𝑀) ⊆ 𝑇) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 384 ∀wal 1481 = wceq 1483 ∈ wcel 1990 ∀wral 2912 {crab 2916 Vcvv 3200 ⊆ wss 3574 class class class wbr 4653 ‘cfv 5888 ℝcr 9935 ℝ*cxr 10073 ≤ cle 10075 ℕ0cn0 11292 ℤ≥cuz 11687 #chash 13117 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 ax-cnex 9992 ax-resscn 9993 ax-1cn 9994 ax-icn 9995 ax-addcl 9996 ax-addrcl 9997 ax-mulcl 9998 ax-mulrcl 9999 ax-mulcom 10000 ax-addass 10001 ax-mulass 10002 ax-distr 10003 ax-i2m1 10004 ax-1ne0 10005 ax-1rid 10006 ax-rnegex 10007 ax-rrecex 10008 ax-cnre 10009 ax-pre-lttri 10010 ax-pre-lttrn 10011 ax-pre-ltadd 10012 ax-pre-mulgt0 10013 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3or 1038 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-nel 2898 df-ral 2917 df-rex 2918 df-reu 2919 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-pss 3590 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-tp 4182 df-op 4184 df-uni 4437 df-int 4476 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-tr 4753 df-id 5024 df-eprel 5029 df-po 5035 df-so 5036 df-fr 5073 df-we 5075 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-pred 5680 df-ord 5726 df-on 5727 df-lim 5728 df-suc 5729 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-riota 6611 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-om 7066 df-wrecs 7407 df-recs 7468 df-rdg 7506 df-er 7742 df-en 7956 df-dom 7957 df-sdom 7958 df-fin 7959 df-card 8765 df-pnf 10076 df-mnf 10077 df-xr 10078 df-ltxr 10079 df-le 10080 df-sub 10268 df-neg 10269 df-nn 11021 df-n0 11293 df-xnn0 11364 df-z 11378 df-uz 11688 df-hash 13118 |
This theorem is referenced by: (None) |
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