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| Mirrors > Home > MPE Home > Th. List > Mathboxes > chnerlem3 | Structured version Visualization version GIF version | ||
| Description: Lemma for chner 47894- trichotomy of integers within the word's domain. (Contributed by Ender Ting, 29-Jan-2026.) |
| Ref | Expression |
|---|---|
| chner.1 | ⊢ (𝜑 → ∼ Er 𝐴) |
| chner.2 | ⊢ (𝜑 → 𝐶 ∈ ( ∼ Chain 𝐴)) |
| chner.3 | ⊢ (𝜑 → 𝐽 ∈ (0..^(♯‘𝐶))) |
| chner.4 | ⊢ (𝜑 → 𝐼 ∈ (0..^(♯‘𝐶))) |
| Ref | Expression |
|---|---|
| chnerlem3 | ⊢ (𝜑 → (𝐼 ∈ (0..^𝐽) ∨ 𝐽 ∈ (0..^𝐼) ∨ 𝐼 = 𝐽)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | chner.4 | . . . . . 6 ⊢ (𝜑 → 𝐼 ∈ (0..^(♯‘𝐶))) | |
| 2 | elfzoelz 13793 | . . . . . 6 ⊢ (𝐼 ∈ (0..^(♯‘𝐶)) → 𝐼 ∈ ℤ) | |
| 3 | 1, 2 | syl 18 | . . . . 5 ⊢ (𝜑 → 𝐼 ∈ ℤ) |
| 4 | 3 | zred 12803 | . . . 4 ⊢ (𝜑 → 𝐼 ∈ ℝ) |
| 5 | chner.3 | . . . . . 6 ⊢ (𝜑 → 𝐽 ∈ (0..^(♯‘𝐶))) | |
| 6 | elfzoelz 13793 | . . . . . 6 ⊢ (𝐽 ∈ (0..^(♯‘𝐶)) → 𝐽 ∈ ℤ) | |
| 7 | 5, 6 | syl 18 | . . . . 5 ⊢ (𝜑 → 𝐽 ∈ ℤ) |
| 8 | 7 | zred 12803 | . . . 4 ⊢ (𝜑 → 𝐽 ∈ ℝ) |
| 9 | lttri4 11394 | . . . 4 ⊢ ((𝐼 ∈ ℝ ∧ 𝐽 ∈ ℝ) → (𝐼 < 𝐽 ∨ 𝐼 = 𝐽 ∨ 𝐽 < 𝐼)) | |
| 10 | 4, 8, 9 | syl2anc 596 | . . 3 ⊢ (𝜑 → (𝐼 < 𝐽 ∨ 𝐼 = 𝐽 ∨ 𝐽 < 𝐼)) |
| 11 | 3orcomb 1110 | . . 3 ⊢ ((𝐼 < 𝐽 ∨ 𝐼 = 𝐽 ∨ 𝐽 < 𝐼) ↔ (𝐼 < 𝐽 ∨ 𝐽 < 𝐼 ∨ 𝐼 = 𝐽)) | |
| 12 | 10, 11 | sylib 221 | . 2 ⊢ (𝜑 → (𝐼 < 𝐽 ∨ 𝐽 < 𝐼 ∨ 𝐼 = 𝐽)) |
| 13 | elfzonn0 13842 | . . . . . . . 8 ⊢ (𝐼 ∈ (0..^(♯‘𝐶)) → 𝐼 ∈ ℕ0) | |
| 14 | 1, 13 | syl 18 | . . . . . . 7 ⊢ (𝜑 → 𝐼 ∈ ℕ0) |
| 15 | 14 | adantr 486 | . . . . . 6 ⊢ ((𝜑 ∧ 𝐼 < 𝐽) → 𝐼 ∈ ℕ0) |
| 16 | 7 | adantr 486 | . . . . . 6 ⊢ ((𝜑 ∧ 𝐼 < 𝐽) → 𝐽 ∈ ℤ) |
| 17 | simpr 490 | . . . . . 6 ⊢ ((𝜑 ∧ 𝐼 < 𝐽) → 𝐼 < 𝐽) | |
| 18 | 15, 16, 17 | 3jca 1146 | . . . . 5 ⊢ ((𝜑 ∧ 𝐼 < 𝐽) → (𝐼 ∈ ℕ0 ∧ 𝐽 ∈ ℤ ∧ 𝐼 < 𝐽)) |
| 19 | elfzo0z 13836 | . . . . 5 ⊢ (𝐼 ∈ (0..^𝐽) ↔ (𝐼 ∈ ℕ0 ∧ 𝐽 ∈ ℤ ∧ 𝐼 < 𝐽)) | |
| 20 | 18, 19 | sylibr 237 | . . . 4 ⊢ ((𝜑 ∧ 𝐼 < 𝐽) → 𝐼 ∈ (0..^𝐽)) |
| 21 | 20 | ex 418 | . . 3 ⊢ (𝜑 → (𝐼 < 𝐽 → 𝐼 ∈ (0..^𝐽))) |
| 22 | elfzonn0 13842 | . . . . . . . 8 ⊢ (𝐽 ∈ (0..^(♯‘𝐶)) → 𝐽 ∈ ℕ0) | |
| 23 | 5, 22 | syl 18 | . . . . . . 7 ⊢ (𝜑 → 𝐽 ∈ ℕ0) |
| 24 | 23 | adantr 486 | . . . . . 6 ⊢ ((𝜑 ∧ 𝐽 < 𝐼) → 𝐽 ∈ ℕ0) |
| 25 | 3 | adantr 486 | . . . . . 6 ⊢ ((𝜑 ∧ 𝐽 < 𝐼) → 𝐼 ∈ ℤ) |
| 26 | simpr 490 | . . . . . 6 ⊢ ((𝜑 ∧ 𝐽 < 𝐼) → 𝐽 < 𝐼) | |
| 27 | 24, 25, 26 | 3jca 1146 | . . . . 5 ⊢ ((𝜑 ∧ 𝐽 < 𝐼) → (𝐽 ∈ ℕ0 ∧ 𝐼 ∈ ℤ ∧ 𝐽 < 𝐼)) |
| 28 | elfzo0z 13836 | . . . . 5 ⊢ (𝐽 ∈ (0..^𝐼) ↔ (𝐽 ∈ ℕ0 ∧ 𝐼 ∈ ℤ ∧ 𝐽 < 𝐼)) | |
| 29 | 27, 28 | sylibr 237 | . . . 4 ⊢ ((𝜑 ∧ 𝐽 < 𝐼) → 𝐽 ∈ (0..^𝐼)) |
| 30 | 29 | ex 418 | . . 3 ⊢ (𝜑 → (𝐽 < 𝐼 → 𝐽 ∈ (0..^𝐼))) |
| 31 | idd 25 | . . 3 ⊢ (𝜑 → (𝐼 = 𝐽 → 𝐼 = 𝐽)) | |
| 32 | 21, 30, 31 | 3orim123d 1472 | . 2 ⊢ (𝜑 → ((𝐼 < 𝐽 ∨ 𝐽 < 𝐼 ∨ 𝐼 = 𝐽) → (𝐼 ∈ (0..^𝐽) ∨ 𝐽 ∈ (0..^𝐼) ∨ 𝐼 = 𝐽))) |
| 33 | 12, 32 | mpd 16 | 1 ⊢ (𝜑 → (𝐼 ∈ (0..^𝐽) ∨ 𝐽 ∈ (0..^𝐼) ∨ 𝐼 = 𝐽)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∨ w3o 1102 ∧ w3a 1103 = wceq 1570 ∈ wcel 2145 class class class wbr 5103 ‘cfv 6538 (class class class)co 7420 Er wer 8714 ℝcr 11199 0cc0 11200 < clt 11343 ℕ0cn0 12606 ℤcz 12693 ..^cfzo 13788 ♯chash 14474 Chain cchn 18779 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7751 ax-cnex 11256 ax-resscn 11257 ax-1cn 11258 ax-icn 11259 ax-addcl 11260 ax-addrcl 11261 ax-mulcl 11262 ax-mulrcl 11263 ax-mulcom 11264 ax-addass 11265 ax-mulass 11266 ax-distr 11267 ax-i2m1 11268 ax-1ne0 11269 ax-1rid 11270 ax-rnegex 11271 ax-rrecex 11272 ax-cnre 11273 ax-pre-lttri 11274 ax-pre-lttrn 11275 ax-pre-ltadd 11276 ax-pre-mulgt0 11277 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7878 df-1st 8001 df-2nd 8002 df-frecs 8299 df-wrecs 8330 df-recs 8379 df-rdg 8418 df-er 8717 df-en 8974 df-dom 8975 df-sdom 8976 df-pnf 11345 df-mnf 11346 df-xr 11347 df-ltxr 11348 df-le 11349 df-sub 11543 df-neg 11544 df-nn 12336 df-n0 12607 df-z 12694 df-uz 12966 df-fz 13640 df-fzo 13789 |
| This theorem is used by: chner 47894 |
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