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Mirrors > Home > MPE Home > Th. List > smorndom | Structured version Visualization version GIF version |
Description: The range of a strictly monotone ordinal function dominates the domain. (Contributed by Mario Carneiro, 13-Mar-2013.) |
Ref | Expression |
---|---|
smorndom | ⊢ ((𝐹:𝐴⟶𝐵 ∧ Smo 𝐹 ∧ Ord 𝐵) → 𝐴 ⊆ 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpl1 1189 | . . . . . . 7 ⊢ (((𝐹:𝐴⟶𝐵 ∧ Smo 𝐹 ∧ Ord 𝐵) ∧ 𝑥 ∈ 𝐴) → 𝐹:𝐴⟶𝐵) | |
2 | 1 | ffnd 6585 | . . . . . 6 ⊢ (((𝐹:𝐴⟶𝐵 ∧ Smo 𝐹 ∧ Ord 𝐵) ∧ 𝑥 ∈ 𝐴) → 𝐹 Fn 𝐴) |
3 | simpl2 1190 | . . . . . 6 ⊢ (((𝐹:𝐴⟶𝐵 ∧ Smo 𝐹 ∧ Ord 𝐵) ∧ 𝑥 ∈ 𝐴) → Smo 𝐹) | |
4 | smodm2 8157 | . . . . . 6 ⊢ ((𝐹 Fn 𝐴 ∧ Smo 𝐹) → Ord 𝐴) | |
5 | 2, 3, 4 | syl2anc 583 | . . . . 5 ⊢ (((𝐹:𝐴⟶𝐵 ∧ Smo 𝐹 ∧ Ord 𝐵) ∧ 𝑥 ∈ 𝐴) → Ord 𝐴) |
6 | ordelord 6273 | . . . . 5 ⊢ ((Ord 𝐴 ∧ 𝑥 ∈ 𝐴) → Ord 𝑥) | |
7 | 5, 6 | sylancom 587 | . . . 4 ⊢ (((𝐹:𝐴⟶𝐵 ∧ Smo 𝐹 ∧ Ord 𝐵) ∧ 𝑥 ∈ 𝐴) → Ord 𝑥) |
8 | simpl3 1191 | . . . 4 ⊢ (((𝐹:𝐴⟶𝐵 ∧ Smo 𝐹 ∧ Ord 𝐵) ∧ 𝑥 ∈ 𝐴) → Ord 𝐵) | |
9 | simpr 484 | . . . . 5 ⊢ (((𝐹:𝐴⟶𝐵 ∧ Smo 𝐹 ∧ Ord 𝐵) ∧ 𝑥 ∈ 𝐴) → 𝑥 ∈ 𝐴) | |
10 | smogt 8169 | . . . . 5 ⊢ ((𝐹 Fn 𝐴 ∧ Smo 𝐹 ∧ 𝑥 ∈ 𝐴) → 𝑥 ⊆ (𝐹‘𝑥)) | |
11 | 2, 3, 9, 10 | syl3anc 1369 | . . . 4 ⊢ (((𝐹:𝐴⟶𝐵 ∧ Smo 𝐹 ∧ Ord 𝐵) ∧ 𝑥 ∈ 𝐴) → 𝑥 ⊆ (𝐹‘𝑥)) |
12 | ffvelrn 6941 | . . . . 5 ⊢ ((𝐹:𝐴⟶𝐵 ∧ 𝑥 ∈ 𝐴) → (𝐹‘𝑥) ∈ 𝐵) | |
13 | 12 | 3ad2antl1 1183 | . . . 4 ⊢ (((𝐹:𝐴⟶𝐵 ∧ Smo 𝐹 ∧ Ord 𝐵) ∧ 𝑥 ∈ 𝐴) → (𝐹‘𝑥) ∈ 𝐵) |
14 | ordtr2 6295 | . . . . 5 ⊢ ((Ord 𝑥 ∧ Ord 𝐵) → ((𝑥 ⊆ (𝐹‘𝑥) ∧ (𝐹‘𝑥) ∈ 𝐵) → 𝑥 ∈ 𝐵)) | |
15 | 14 | imp 406 | . . . 4 ⊢ (((Ord 𝑥 ∧ Ord 𝐵) ∧ (𝑥 ⊆ (𝐹‘𝑥) ∧ (𝐹‘𝑥) ∈ 𝐵)) → 𝑥 ∈ 𝐵) |
16 | 7, 8, 11, 13, 15 | syl22anc 835 | . . 3 ⊢ (((𝐹:𝐴⟶𝐵 ∧ Smo 𝐹 ∧ Ord 𝐵) ∧ 𝑥 ∈ 𝐴) → 𝑥 ∈ 𝐵) |
17 | 16 | ex 412 | . 2 ⊢ ((𝐹:𝐴⟶𝐵 ∧ Smo 𝐹 ∧ Ord 𝐵) → (𝑥 ∈ 𝐴 → 𝑥 ∈ 𝐵)) |
18 | 17 | ssrdv 3923 | 1 ⊢ ((𝐹:𝐴⟶𝐵 ∧ Smo 𝐹 ∧ Ord 𝐵) → 𝐴 ⊆ 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1085 ∈ wcel 2108 ⊆ wss 3883 Ord word 6250 Fn wfn 6413 ⟶wf 6414 ‘cfv 6418 Smo wsmo 8147 |
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-sep 5218 ax-nul 5225 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-rab 3072 df-v 3424 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-br 5071 df-opab 5133 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-ord 6254 df-on 6255 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-fv 6426 df-smo 8148 |
This theorem is referenced by: cofsmo 9956 hsmexlem1 10113 |
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