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Mirrors > Home > MPE Home > Th. List > Mathboxes > ex-sategoelel12 | Structured version Visualization version GIF version |
Description: Example of a valuation of a simplified satisfaction predicate over a proper pair (of ordinal numbers) as model for a Godel-set of membership using the properties of a successor: (𝑆‘2o) = 1o ∈ 2o = (𝑆‘2o). Remark: the indices 1o and 2o are intentionally reversed to distinguish them from elements of the model: (2o∈𝑔1o) should not be confused with 2o ∈ 1o, which is false. (Contributed by AV, 19-Nov-2023.) |
Ref | Expression |
---|---|
ex-sategoelel12.s | ⊢ 𝑆 = (𝑥 ∈ ω ↦ if(𝑥 = 2o, 1o, 2o)) |
Ref | Expression |
---|---|
ex-sategoelel12 | ⊢ 𝑆 ∈ ({1o, 2o} Sat∈ (2o∈𝑔1o)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ex-sategoelel12.s | . . . . 5 ⊢ 𝑆 = (𝑥 ∈ ω ↦ if(𝑥 = 2o, 1o, 2o)) | |
2 | 1oex 8110 | . . . . . . . 8 ⊢ 1o ∈ V | |
3 | 2 | prid1 4698 | . . . . . . 7 ⊢ 1o ∈ {1o, 2o} |
4 | 2oex 8112 | . . . . . . . 8 ⊢ 2o ∈ V | |
5 | 4 | prid2 4699 | . . . . . . 7 ⊢ 2o ∈ {1o, 2o} |
6 | 3, 5 | ifcli 4513 | . . . . . 6 ⊢ if(𝑥 = 2o, 1o, 2o) ∈ {1o, 2o} |
7 | 6 | a1i 11 | . . . . 5 ⊢ (𝑥 ∈ ω → if(𝑥 = 2o, 1o, 2o) ∈ {1o, 2o}) |
8 | 1, 7 | fmpti 6876 | . . . 4 ⊢ 𝑆:ω⟶{1o, 2o} |
9 | prex 5333 | . . . . 5 ⊢ {1o, 2o} ∈ V | |
10 | omex 9106 | . . . . 5 ⊢ ω ∈ V | |
11 | 9, 10 | elmap 8435 | . . . 4 ⊢ (𝑆 ∈ ({1o, 2o} ↑m ω) ↔ 𝑆:ω⟶{1o, 2o}) |
12 | 8, 11 | mpbir 233 | . . 3 ⊢ 𝑆 ∈ ({1o, 2o} ↑m ω) |
13 | 2 | sucid 6270 | . . . . 5 ⊢ 1o ∈ suc 1o |
14 | df-2o 8103 | . . . . 5 ⊢ 2o = suc 1o | |
15 | 13, 14 | eleqtrri 2912 | . . . 4 ⊢ 1o ∈ 2o |
16 | 2onn 8266 | . . . . 5 ⊢ 2o ∈ ω | |
17 | 1onn 8265 | . . . . 5 ⊢ 1o ∈ ω | |
18 | iftrue 4473 | . . . . . 6 ⊢ (𝑥 = 2o → if(𝑥 = 2o, 1o, 2o) = 1o) | |
19 | 18, 1 | fvmptg 6766 | . . . . 5 ⊢ ((2o ∈ ω ∧ 1o ∈ ω) → (𝑆‘2o) = 1o) |
20 | 16, 17, 19 | mp2an 690 | . . . 4 ⊢ (𝑆‘2o) = 1o |
21 | 1one2o 8269 | . . . . . . . . 9 ⊢ 1o ≠ 2o | |
22 | 21 | neii 3018 | . . . . . . . 8 ⊢ ¬ 1o = 2o |
23 | eqeq1 2825 | . . . . . . . 8 ⊢ (𝑥 = 1o → (𝑥 = 2o ↔ 1o = 2o)) | |
24 | 22, 23 | mtbiri 329 | . . . . . . 7 ⊢ (𝑥 = 1o → ¬ 𝑥 = 2o) |
25 | 24 | iffalsed 4478 | . . . . . 6 ⊢ (𝑥 = 1o → if(𝑥 = 2o, 1o, 2o) = 2o) |
26 | 25, 1 | fvmptg 6766 | . . . . 5 ⊢ ((1o ∈ ω ∧ 2o ∈ ω) → (𝑆‘1o) = 2o) |
27 | 17, 16, 26 | mp2an 690 | . . . 4 ⊢ (𝑆‘1o) = 2o |
28 | 15, 20, 27 | 3eltr4i 2926 | . . 3 ⊢ (𝑆‘2o) ∈ (𝑆‘1o) |
29 | 12, 28 | pm3.2i 473 | . 2 ⊢ (𝑆 ∈ ({1o, 2o} ↑m ω) ∧ (𝑆‘2o) ∈ (𝑆‘1o)) |
30 | 16, 17 | pm3.2i 473 | . . 3 ⊢ (2o ∈ ω ∧ 1o ∈ ω) |
31 | eqid 2821 | . . . 4 ⊢ ({1o, 2o} Sat∈ (2o∈𝑔1o)) = ({1o, 2o} Sat∈ (2o∈𝑔1o)) | |
32 | 31 | sategoelfvb 32666 | . . 3 ⊢ (({1o, 2o} ∈ V ∧ (2o ∈ ω ∧ 1o ∈ ω)) → (𝑆 ∈ ({1o, 2o} Sat∈ (2o∈𝑔1o)) ↔ (𝑆 ∈ ({1o, 2o} ↑m ω) ∧ (𝑆‘2o) ∈ (𝑆‘1o)))) |
33 | 9, 30, 32 | mp2an 690 | . 2 ⊢ (𝑆 ∈ ({1o, 2o} Sat∈ (2o∈𝑔1o)) ↔ (𝑆 ∈ ({1o, 2o} ↑m ω) ∧ (𝑆‘2o) ∈ (𝑆‘1o))) |
34 | 29, 33 | mpbir 233 | 1 ⊢ 𝑆 ∈ ({1o, 2o} Sat∈ (2o∈𝑔1o)) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 208 ∧ wa 398 = wceq 1537 ∈ wcel 2114 Vcvv 3494 ifcif 4467 {cpr 4569 ↦ cmpt 5146 suc csuc 6193 ⟶wf 6351 ‘cfv 6355 (class class class)co 7156 ωcom 7580 1oc1o 8095 2oc2o 8096 ↑m cmap 8406 ∈𝑔cgoe 32580 Sat∈ csate 32585 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-rep 5190 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 ax-inf2 9104 ax-ac2 9885 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-pss 3954 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4839 df-int 4877 df-iun 4921 df-br 5067 df-opab 5129 df-mpt 5147 df-tr 5173 df-id 5460 df-eprel 5465 df-po 5474 df-so 5475 df-fr 5514 df-se 5515 df-we 5516 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-pred 6148 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-isom 6364 df-riota 7114 df-ov 7159 df-oprab 7160 df-mpo 7161 df-om 7581 df-1st 7689 df-2nd 7690 df-wrecs 7947 df-recs 8008 df-rdg 8046 df-1o 8102 df-2o 8103 df-er 8289 df-map 8408 df-en 8510 df-dom 8511 df-sdom 8512 df-card 9368 df-ac 9542 df-goel 32587 df-gona 32588 df-goal 32589 df-sat 32590 df-sate 32591 df-fmla 32592 |
This theorem is referenced by: (None) |
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