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Mirrors > Home > ILE Home > Th. List > iseqovex | GIF version |
Description: Closure of a function used in proving sequence builder theorems. This can be thought of as a lemma for the small number of sequence builder theorems which need it. (Contributed by Jim Kingdon, 31-May-2020.) |
Ref | Expression |
---|---|
iseqovex.f | ⊢ ((𝜑 ∧ 𝑥 ∈ (ℤ≥‘𝑀)) → (𝐹‘𝑥) ∈ 𝑆) |
iseqovex.pl | ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑆)) → (𝑥 + 𝑦) ∈ 𝑆) |
Ref | Expression |
---|---|
iseqovex | ⊢ ((𝜑 ∧ (𝑥 ∈ (ℤ≥‘𝑀) ∧ 𝑦 ∈ 𝑆)) → (𝑥(𝑧 ∈ (ℤ≥‘𝑀), 𝑤 ∈ 𝑆 ↦ (𝑤 + (𝐹‘(𝑧 + 1))))𝑦) ∈ 𝑆) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqidd 2178 | . . 3 ⊢ ((𝜑 ∧ (𝑥 ∈ (ℤ≥‘𝑀) ∧ 𝑦 ∈ 𝑆)) → (𝑧 ∈ (ℤ≥‘𝑀), 𝑤 ∈ 𝑆 ↦ (𝑤 + (𝐹‘(𝑧 + 1)))) = (𝑧 ∈ (ℤ≥‘𝑀), 𝑤 ∈ 𝑆 ↦ (𝑤 + (𝐹‘(𝑧 + 1))))) | |
2 | simprr 531 | . . . 4 ⊢ (((𝜑 ∧ (𝑥 ∈ (ℤ≥‘𝑀) ∧ 𝑦 ∈ 𝑆)) ∧ (𝑧 = 𝑥 ∧ 𝑤 = 𝑦)) → 𝑤 = 𝑦) | |
3 | simprl 529 | . . . . . 6 ⊢ (((𝜑 ∧ (𝑥 ∈ (ℤ≥‘𝑀) ∧ 𝑦 ∈ 𝑆)) ∧ (𝑧 = 𝑥 ∧ 𝑤 = 𝑦)) → 𝑧 = 𝑥) | |
4 | 3 | oveq1d 5892 | . . . . 5 ⊢ (((𝜑 ∧ (𝑥 ∈ (ℤ≥‘𝑀) ∧ 𝑦 ∈ 𝑆)) ∧ (𝑧 = 𝑥 ∧ 𝑤 = 𝑦)) → (𝑧 + 1) = (𝑥 + 1)) |
5 | 4 | fveq2d 5521 | . . . 4 ⊢ (((𝜑 ∧ (𝑥 ∈ (ℤ≥‘𝑀) ∧ 𝑦 ∈ 𝑆)) ∧ (𝑧 = 𝑥 ∧ 𝑤 = 𝑦)) → (𝐹‘(𝑧 + 1)) = (𝐹‘(𝑥 + 1))) |
6 | 2, 5 | oveq12d 5895 | . . 3 ⊢ (((𝜑 ∧ (𝑥 ∈ (ℤ≥‘𝑀) ∧ 𝑦 ∈ 𝑆)) ∧ (𝑧 = 𝑥 ∧ 𝑤 = 𝑦)) → (𝑤 + (𝐹‘(𝑧 + 1))) = (𝑦 + (𝐹‘(𝑥 + 1)))) |
7 | simprl 529 | . . 3 ⊢ ((𝜑 ∧ (𝑥 ∈ (ℤ≥‘𝑀) ∧ 𝑦 ∈ 𝑆)) → 𝑥 ∈ (ℤ≥‘𝑀)) | |
8 | simprr 531 | . . 3 ⊢ ((𝜑 ∧ (𝑥 ∈ (ℤ≥‘𝑀) ∧ 𝑦 ∈ 𝑆)) → 𝑦 ∈ 𝑆) | |
9 | iseqovex.pl | . . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑆)) → (𝑥 + 𝑦) ∈ 𝑆) | |
10 | 9 | caovclg 6029 | . . . . 5 ⊢ ((𝜑 ∧ (𝑧 ∈ 𝑆 ∧ 𝑤 ∈ 𝑆)) → (𝑧 + 𝑤) ∈ 𝑆) |
11 | 10 | adantlr 477 | . . . 4 ⊢ (((𝜑 ∧ (𝑥 ∈ (ℤ≥‘𝑀) ∧ 𝑦 ∈ 𝑆)) ∧ (𝑧 ∈ 𝑆 ∧ 𝑤 ∈ 𝑆)) → (𝑧 + 𝑤) ∈ 𝑆) |
12 | fveq2 5517 | . . . . . 6 ⊢ (𝑧 = (𝑥 + 1) → (𝐹‘𝑧) = (𝐹‘(𝑥 + 1))) | |
13 | 12 | eleq1d 2246 | . . . . 5 ⊢ (𝑧 = (𝑥 + 1) → ((𝐹‘𝑧) ∈ 𝑆 ↔ (𝐹‘(𝑥 + 1)) ∈ 𝑆)) |
14 | iseqovex.f | . . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ (ℤ≥‘𝑀)) → (𝐹‘𝑥) ∈ 𝑆) | |
15 | 14 | ralrimiva 2550 | . . . . . . 7 ⊢ (𝜑 → ∀𝑥 ∈ (ℤ≥‘𝑀)(𝐹‘𝑥) ∈ 𝑆) |
16 | fveq2 5517 | . . . . . . . . 9 ⊢ (𝑥 = 𝑧 → (𝐹‘𝑥) = (𝐹‘𝑧)) | |
17 | 16 | eleq1d 2246 | . . . . . . . 8 ⊢ (𝑥 = 𝑧 → ((𝐹‘𝑥) ∈ 𝑆 ↔ (𝐹‘𝑧) ∈ 𝑆)) |
18 | 17 | cbvralv 2705 | . . . . . . 7 ⊢ (∀𝑥 ∈ (ℤ≥‘𝑀)(𝐹‘𝑥) ∈ 𝑆 ↔ ∀𝑧 ∈ (ℤ≥‘𝑀)(𝐹‘𝑧) ∈ 𝑆) |
19 | 15, 18 | sylib 122 | . . . . . 6 ⊢ (𝜑 → ∀𝑧 ∈ (ℤ≥‘𝑀)(𝐹‘𝑧) ∈ 𝑆) |
20 | 19 | adantr 276 | . . . . 5 ⊢ ((𝜑 ∧ (𝑥 ∈ (ℤ≥‘𝑀) ∧ 𝑦 ∈ 𝑆)) → ∀𝑧 ∈ (ℤ≥‘𝑀)(𝐹‘𝑧) ∈ 𝑆) |
21 | peano2uz 9585 | . . . . . 6 ⊢ (𝑥 ∈ (ℤ≥‘𝑀) → (𝑥 + 1) ∈ (ℤ≥‘𝑀)) | |
22 | 7, 21 | syl 14 | . . . . 5 ⊢ ((𝜑 ∧ (𝑥 ∈ (ℤ≥‘𝑀) ∧ 𝑦 ∈ 𝑆)) → (𝑥 + 1) ∈ (ℤ≥‘𝑀)) |
23 | 13, 20, 22 | rspcdva 2848 | . . . 4 ⊢ ((𝜑 ∧ (𝑥 ∈ (ℤ≥‘𝑀) ∧ 𝑦 ∈ 𝑆)) → (𝐹‘(𝑥 + 1)) ∈ 𝑆) |
24 | 11, 8, 23 | caovcld 6030 | . . 3 ⊢ ((𝜑 ∧ (𝑥 ∈ (ℤ≥‘𝑀) ∧ 𝑦 ∈ 𝑆)) → (𝑦 + (𝐹‘(𝑥 + 1))) ∈ 𝑆) |
25 | 1, 6, 7, 8, 24 | ovmpod 6004 | . 2 ⊢ ((𝜑 ∧ (𝑥 ∈ (ℤ≥‘𝑀) ∧ 𝑦 ∈ 𝑆)) → (𝑥(𝑧 ∈ (ℤ≥‘𝑀), 𝑤 ∈ 𝑆 ↦ (𝑤 + (𝐹‘(𝑧 + 1))))𝑦) = (𝑦 + (𝐹‘(𝑥 + 1)))) |
26 | 25, 24 | eqeltrd 2254 | 1 ⊢ ((𝜑 ∧ (𝑥 ∈ (ℤ≥‘𝑀) ∧ 𝑦 ∈ 𝑆)) → (𝑥(𝑧 ∈ (ℤ≥‘𝑀), 𝑤 ∈ 𝑆 ↦ (𝑤 + (𝐹‘(𝑧 + 1))))𝑦) ∈ 𝑆) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 104 = wceq 1353 ∈ wcel 2148 ∀wral 2455 ‘cfv 5218 (class class class)co 5877 ∈ cmpo 5879 1c1 7814 + caddc 7816 ℤ≥cuz 9530 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 614 ax-in2 615 ax-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-13 2150 ax-14 2151 ax-ext 2159 ax-sep 4123 ax-pow 4176 ax-pr 4211 ax-un 4435 ax-setind 4538 ax-cnex 7904 ax-resscn 7905 ax-1cn 7906 ax-1re 7907 ax-icn 7908 ax-addcl 7909 ax-addrcl 7910 ax-mulcl 7911 ax-addcom 7913 ax-addass 7915 ax-distr 7917 ax-i2m1 7918 ax-0lt1 7919 ax-0id 7921 ax-rnegex 7922 ax-cnre 7924 ax-pre-ltirr 7925 ax-pre-ltwlin 7926 ax-pre-lttrn 7927 ax-pre-ltadd 7929 |
This theorem depends on definitions: df-bi 117 df-3or 979 df-3an 980 df-tru 1356 df-fal 1359 df-nf 1461 df-sb 1763 df-eu 2029 df-mo 2030 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ne 2348 df-nel 2443 df-ral 2460 df-rex 2461 df-reu 2462 df-rab 2464 df-v 2741 df-sbc 2965 df-dif 3133 df-un 3135 df-in 3137 df-ss 3144 df-pw 3579 df-sn 3600 df-pr 3601 df-op 3603 df-uni 3812 df-int 3847 df-br 4006 df-opab 4067 df-mpt 4068 df-id 4295 df-xp 4634 df-rel 4635 df-cnv 4636 df-co 4637 df-dm 4638 df-rn 4639 df-res 4640 df-ima 4641 df-iota 5180 df-fun 5220 df-fn 5221 df-f 5222 df-fv 5226 df-riota 5833 df-ov 5880 df-oprab 5881 df-mpo 5882 df-pnf 7996 df-mnf 7997 df-xr 7998 df-ltxr 7999 df-le 8000 df-sub 8132 df-neg 8133 df-inn 8922 df-n0 9179 df-z 9256 df-uz 9531 |
This theorem is referenced by: seq3val 10460 seq3-1 10462 seq3p1 10464 |
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