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| Mirrors > Home > MPE Home > Th. List > Mathboxes > submateqlem2 | Structured version Visualization version GIF version | ||
| Description: Lemma for submateq 29203. (Contributed by Thierry Arnoux, 26-Aug-2020.) |
| Ref | Expression |
|---|---|
| submateqlem2.n | ⊢ (𝜑 → 𝑁 ∈ ℕ) |
| submateqlem2.k | ⊢ (𝜑 → 𝐾 ∈ (1...𝑁)) |
| submateqlem2.m | ⊢ (𝜑 → 𝑀 ∈ (1...(𝑁 − 1))) |
| submateqlem2.1 | ⊢ (𝜑 → 𝑀 < 𝐾) |
| Ref | Expression |
|---|---|
| submateqlem2 | ⊢ (𝜑 → (𝑀 ∈ (1..^𝐾) ∧ 𝑀 ∈ ((1...𝑁) ∖ {𝐾}))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fz1ssnn 12243 | . . . . . 6 ⊢ (1...(𝑁 − 1)) ⊆ ℕ | |
| 2 | submateqlem2.m | . . . . . 6 ⊢ (𝜑 → 𝑀 ∈ (1...(𝑁 − 1))) | |
| 3 | 1, 2 | sseldi 3566 | . . . . 5 ⊢ (𝜑 → 𝑀 ∈ ℕ) |
| 4 | 3 | nnge1d 10940 | . . . 4 ⊢ (𝜑 → 1 ≤ 𝑀) |
| 5 | submateqlem2.1 | . . . 4 ⊢ (𝜑 → 𝑀 < 𝐾) | |
| 6 | 4, 5 | jca 553 | . . 3 ⊢ (𝜑 → (1 ≤ 𝑀 ∧ 𝑀 < 𝐾)) |
| 7 | 3 | nnzd 11357 | . . . 4 ⊢ (𝜑 → 𝑀 ∈ ℤ) |
| 8 | 1zzd 11285 | . . . 4 ⊢ (𝜑 → 1 ∈ ℤ) | |
| 9 | fz1ssnn 12243 | . . . . . 6 ⊢ (1...𝑁) ⊆ ℕ | |
| 10 | submateqlem2.k | . . . . . 6 ⊢ (𝜑 → 𝐾 ∈ (1...𝑁)) | |
| 11 | 9, 10 | sseldi 3566 | . . . . 5 ⊢ (𝜑 → 𝐾 ∈ ℕ) |
| 12 | 11 | nnzd 11357 | . . . 4 ⊢ (𝜑 → 𝐾 ∈ ℤ) |
| 13 | elfzo 12341 | . . . 4 ⊢ ((𝑀 ∈ ℤ ∧ 1 ∈ ℤ ∧ 𝐾 ∈ ℤ) → (𝑀 ∈ (1..^𝐾) ↔ (1 ≤ 𝑀 ∧ 𝑀 < 𝐾))) | |
| 14 | 7, 8, 12, 13 | syl3anc 1318 | . . 3 ⊢ (𝜑 → (𝑀 ∈ (1..^𝐾) ↔ (1 ≤ 𝑀 ∧ 𝑀 < 𝐾))) |
| 15 | 6, 14 | mpbird 246 | . 2 ⊢ (𝜑 → 𝑀 ∈ (1..^𝐾)) |
| 16 | 2 | orcd 406 | . . . 4 ⊢ (𝜑 → (𝑀 ∈ (1...(𝑁 − 1)) ∨ 𝑀 = 𝑁)) |
| 17 | submateqlem2.n | . . . . . 6 ⊢ (𝜑 → 𝑁 ∈ ℕ) | |
| 18 | nnuz 11599 | . . . . . 6 ⊢ ℕ = (ℤ≥‘1) | |
| 19 | 17, 18 | syl6eleq 2698 | . . . . 5 ⊢ (𝜑 → 𝑁 ∈ (ℤ≥‘1)) |
| 20 | fzm1 12289 | . . . . 5 ⊢ (𝑁 ∈ (ℤ≥‘1) → (𝑀 ∈ (1...𝑁) ↔ (𝑀 ∈ (1...(𝑁 − 1)) ∨ 𝑀 = 𝑁))) | |
| 21 | 19, 20 | syl 17 | . . . 4 ⊢ (𝜑 → (𝑀 ∈ (1...𝑁) ↔ (𝑀 ∈ (1...(𝑁 − 1)) ∨ 𝑀 = 𝑁))) |
| 22 | 16, 21 | mpbird 246 | . . 3 ⊢ (𝜑 → 𝑀 ∈ (1...𝑁)) |
| 23 | 3 | nnred 10912 | . . . . 5 ⊢ (𝜑 → 𝑀 ∈ ℝ) |
| 24 | 23, 5 | ltned 10052 | . . . 4 ⊢ (𝜑 → 𝑀 ≠ 𝐾) |
| 25 | nelsn 4159 | . . . 4 ⊢ (𝑀 ≠ 𝐾 → ¬ 𝑀 ∈ {𝐾}) | |
| 26 | 24, 25 | syl 17 | . . 3 ⊢ (𝜑 → ¬ 𝑀 ∈ {𝐾}) |
| 27 | 22, 26 | eldifd 3551 | . 2 ⊢ (𝜑 → 𝑀 ∈ ((1...𝑁) ∖ {𝐾})) |
| 28 | 15, 27 | jca 553 | 1 ⊢ (𝜑 → (𝑀 ∈ (1..^𝐾) ∧ 𝑀 ∈ ((1...𝑁) ∖ {𝐾}))) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 195 ∨ wo 382 ∧ wa 383 = wceq 1475 ∈ wcel 1977 ≠ wne 2780 ∖ cdif 3537 {csn 4125 class class class wbr 4583 ‘cfv 5804 (class class class)co 6549 1c1 9816 < clt 9953 ≤ cle 9954 − cmin 10145 ℕcn 10897 ℤcz 11254 ℤ≥cuz 11563 ...cfz 12197 ..^cfzo 12334 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-cnex 9871 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-mulcom 9879 ax-addass 9880 ax-mulass 9881 ax-distr 9882 ax-i2m1 9883 ax-1ne0 9884 ax-1rid 9885 ax-rnegex 9886 ax-rrecex 9887 ax-cnre 9888 ax-pre-lttri 9889 ax-pre-lttrn 9890 ax-pre-ltadd 9891 ax-pre-mulgt0 9892 |
| This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-reu 2903 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-pss 3556 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-tp 4130 df-op 4132 df-uni 4373 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-tr 4681 df-eprel 4949 df-id 4953 df-po 4959 df-so 4960 df-fr 4997 df-we 4999 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-pred 5597 df-ord 5643 df-on 5644 df-lim 5645 df-suc 5646 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-riota 6511 df-ov 6552 df-oprab 6553 df-mpt2 6554 df-om 6958 df-1st 7059 df-2nd 7060 df-wrecs 7294 df-recs 7355 df-rdg 7393 df-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 df-pnf 9955 df-mnf 9956 df-xr 9957 df-ltxr 9958 df-le 9959 df-sub 10147 df-neg 10148 df-nn 10898 df-n0 11170 df-z 11255 df-uz 11564 df-fz 12198 df-fzo 12335 |
| This theorem is referenced by: submateq 29203 |
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