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Mirrors > Home > MPE Home > Th. List > cantnflem1a | Structured version Visualization version GIF version |
Description: Lemma for cantnf 8628. (Contributed by Mario Carneiro, 4-Jun-2015.) (Revised by AV, 2-Jul-2019.) |
Ref | Expression |
---|---|
cantnfs.s | ⊢ 𝑆 = dom (𝐴 CNF 𝐵) |
cantnfs.a | ⊢ (𝜑 → 𝐴 ∈ On) |
cantnfs.b | ⊢ (𝜑 → 𝐵 ∈ On) |
oemapval.t | ⊢ 𝑇 = {〈𝑥, 𝑦〉 ∣ ∃𝑧 ∈ 𝐵 ((𝑥‘𝑧) ∈ (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)))} |
oemapval.f | ⊢ (𝜑 → 𝐹 ∈ 𝑆) |
oemapval.g | ⊢ (𝜑 → 𝐺 ∈ 𝑆) |
oemapvali.r | ⊢ (𝜑 → 𝐹𝑇𝐺) |
oemapvali.x | ⊢ 𝑋 = ∪ {𝑐 ∈ 𝐵 ∣ (𝐹‘𝑐) ∈ (𝐺‘𝑐)} |
Ref | Expression |
---|---|
cantnflem1a | ⊢ (𝜑 → 𝑋 ∈ (𝐺 supp ∅)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cantnfs.s | . . . 4 ⊢ 𝑆 = dom (𝐴 CNF 𝐵) | |
2 | cantnfs.a | . . . 4 ⊢ (𝜑 → 𝐴 ∈ On) | |
3 | cantnfs.b | . . . 4 ⊢ (𝜑 → 𝐵 ∈ On) | |
4 | oemapval.t | . . . 4 ⊢ 𝑇 = {〈𝑥, 𝑦〉 ∣ ∃𝑧 ∈ 𝐵 ((𝑥‘𝑧) ∈ (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)))} | |
5 | oemapval.f | . . . 4 ⊢ (𝜑 → 𝐹 ∈ 𝑆) | |
6 | oemapval.g | . . . 4 ⊢ (𝜑 → 𝐺 ∈ 𝑆) | |
7 | oemapvali.r | . . . 4 ⊢ (𝜑 → 𝐹𝑇𝐺) | |
8 | oemapvali.x | . . . 4 ⊢ 𝑋 = ∪ {𝑐 ∈ 𝐵 ∣ (𝐹‘𝑐) ∈ (𝐺‘𝑐)} | |
9 | 1, 2, 3, 4, 5, 6, 7, 8 | oemapvali 8619 | . . 3 ⊢ (𝜑 → (𝑋 ∈ 𝐵 ∧ (𝐹‘𝑋) ∈ (𝐺‘𝑋) ∧ ∀𝑤 ∈ 𝐵 (𝑋 ∈ 𝑤 → (𝐹‘𝑤) = (𝐺‘𝑤)))) |
10 | 9 | simp1d 1093 | . 2 ⊢ (𝜑 → 𝑋 ∈ 𝐵) |
11 | 9 | simp2d 1094 | . . 3 ⊢ (𝜑 → (𝐹‘𝑋) ∈ (𝐺‘𝑋)) |
12 | ne0i 3954 | . . 3 ⊢ ((𝐹‘𝑋) ∈ (𝐺‘𝑋) → (𝐺‘𝑋) ≠ ∅) | |
13 | 11, 12 | syl 17 | . 2 ⊢ (𝜑 → (𝐺‘𝑋) ≠ ∅) |
14 | 1, 2, 3 | cantnfs 8601 | . . . . . 6 ⊢ (𝜑 → (𝐺 ∈ 𝑆 ↔ (𝐺:𝐵⟶𝐴 ∧ 𝐺 finSupp ∅))) |
15 | 6, 14 | mpbid 222 | . . . . 5 ⊢ (𝜑 → (𝐺:𝐵⟶𝐴 ∧ 𝐺 finSupp ∅)) |
16 | 15 | simpld 474 | . . . 4 ⊢ (𝜑 → 𝐺:𝐵⟶𝐴) |
17 | ffn 6083 | . . . 4 ⊢ (𝐺:𝐵⟶𝐴 → 𝐺 Fn 𝐵) | |
18 | 16, 17 | syl 17 | . . 3 ⊢ (𝜑 → 𝐺 Fn 𝐵) |
19 | 0ex 4823 | . . . 4 ⊢ ∅ ∈ V | |
20 | 19 | a1i 11 | . . 3 ⊢ (𝜑 → ∅ ∈ V) |
21 | elsuppfn 7348 | . . 3 ⊢ ((𝐺 Fn 𝐵 ∧ 𝐵 ∈ On ∧ ∅ ∈ V) → (𝑋 ∈ (𝐺 supp ∅) ↔ (𝑋 ∈ 𝐵 ∧ (𝐺‘𝑋) ≠ ∅))) | |
22 | 18, 3, 20, 21 | syl3anc 1366 | . 2 ⊢ (𝜑 → (𝑋 ∈ (𝐺 supp ∅) ↔ (𝑋 ∈ 𝐵 ∧ (𝐺‘𝑋) ≠ ∅))) |
23 | 10, 13, 22 | mpbir2and 977 | 1 ⊢ (𝜑 → 𝑋 ∈ (𝐺 supp ∅)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 196 ∧ wa 383 = wceq 1523 ∈ wcel 2030 ≠ wne 2823 ∀wral 2941 ∃wrex 2942 {crab 2945 Vcvv 3231 ∅c0 3948 ∪ cuni 4468 class class class wbr 4685 {copab 4745 dom cdm 5143 Oncon0 5761 Fn wfn 5921 ⟶wf 5922 ‘cfv 5926 (class class class)co 6690 supp csupp 7340 finSupp cfsupp 8316 CNF ccnf 8596 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1762 ax-4 1777 ax-5 1879 ax-6 1945 ax-7 1981 ax-8 2032 ax-9 2039 ax-10 2059 ax-11 2074 ax-12 2087 ax-13 2282 ax-ext 2631 ax-rep 4804 ax-sep 4814 ax-nul 4822 ax-pow 4873 ax-pr 4936 ax-un 6991 |
This theorem depends on definitions: df-bi 197 df-or 384 df-an 385 df-3or 1055 df-3an 1056 df-tru 1526 df-fal 1529 df-ex 1745 df-nf 1750 df-sb 1938 df-eu 2502 df-mo 2503 df-clab 2638 df-cleq 2644 df-clel 2647 df-nfc 2782 df-ne 2824 df-ral 2946 df-rex 2947 df-reu 2948 df-rab 2950 df-v 3233 df-sbc 3469 df-csb 3567 df-dif 3610 df-un 3612 df-in 3614 df-ss 3621 df-pss 3623 df-nul 3949 df-if 4120 df-pw 4193 df-sn 4211 df-pr 4213 df-tp 4215 df-op 4217 df-uni 4469 df-iun 4554 df-br 4686 df-opab 4746 df-mpt 4763 df-tr 4786 df-id 5053 df-eprel 5058 df-po 5064 df-so 5065 df-fr 5102 df-we 5104 df-xp 5149 df-rel 5150 df-cnv 5151 df-co 5152 df-dm 5153 df-rn 5154 df-res 5155 df-ima 5156 df-pred 5718 df-ord 5764 df-on 5765 df-lim 5766 df-suc 5767 df-iota 5889 df-fun 5928 df-fn 5929 df-f 5930 df-f1 5931 df-fo 5932 df-f1o 5933 df-fv 5934 df-ov 6693 df-oprab 6694 df-mpt2 6695 df-om 7108 df-supp 7341 df-wrecs 7452 df-recs 7513 df-rdg 7551 df-seqom 7588 df-1o 7605 df-er 7787 df-map 7901 df-en 7998 df-fin 8001 df-fsupp 8317 df-cnf 8597 |
This theorem is referenced by: cantnflem1b 8621 cantnflem1d 8623 cantnflem1 8624 |
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