| Mathbox for Thierry Arnoux |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > smattl | Structured version Visualization version GIF version | ||
| Description: Entries of a submatrix, top left. (Contributed by Thierry Arnoux, 19-Aug-2020.) |
| Ref | Expression |
|---|---|
| smat.s | ⊢ 𝑆 = (𝐾(subMat1‘𝐴)𝐿) |
| smat.m | ⊢ (𝜑 → 𝑀 ∈ ℕ) |
| smat.n | ⊢ (𝜑 → 𝑁 ∈ ℕ) |
| smat.k | ⊢ (𝜑 → 𝐾 ∈ (1...𝑀)) |
| smat.l | ⊢ (𝜑 → 𝐿 ∈ (1...𝑁)) |
| smat.a | ⊢ (𝜑 → 𝐴 ∈ (𝐵 ↑m ((1...𝑀) × (1...𝑁)))) |
| smattl.i | ⊢ (𝜑 → 𝐼 ∈ (1..^𝐾)) |
| smattl.j | ⊢ (𝜑 → 𝐽 ∈ (1..^𝐿)) |
| Ref | Expression |
|---|---|
| smattl | ⊢ (𝜑 → (𝐼𝑆𝐽) = (𝐼𝐴𝐽)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | smat.s | . 2 ⊢ 𝑆 = (𝐾(subMat1‘𝐴)𝐿) | |
| 2 | smat.m | . 2 ⊢ (𝜑 → 𝑀 ∈ ℕ) | |
| 3 | smat.n | . 2 ⊢ (𝜑 → 𝑁 ∈ ℕ) | |
| 4 | smat.k | . 2 ⊢ (𝜑 → 𝐾 ∈ (1...𝑀)) | |
| 5 | smat.l | . 2 ⊢ (𝜑 → 𝐿 ∈ (1...𝑁)) | |
| 6 | smat.a | . 2 ⊢ (𝜑 → 𝐴 ∈ (𝐵 ↑m ((1...𝑀) × (1...𝑁)))) | |
| 7 | fzossnn 13826 | . . 3 ⊢ (1..^𝐾) ⊆ ℕ | |
| 8 | smattl.i | . . 3 ⊢ (𝜑 → 𝐼 ∈ (1..^𝐾)) | |
| 9 | 7, 8 | sselid 3929 | . 2 ⊢ (𝜑 → 𝐼 ∈ ℕ) |
| 10 | fzossnn 13826 | . . 3 ⊢ (1..^𝐿) ⊆ ℕ | |
| 11 | smattl.j | . . 3 ⊢ (𝜑 → 𝐽 ∈ (1..^𝐿)) | |
| 12 | 10, 11 | sselid 3929 | . 2 ⊢ (𝜑 → 𝐽 ∈ ℕ) |
| 13 | elfzolt2 13783 | . . . 4 ⊢ (𝐼 ∈ (1..^𝐾) → 𝐼 < 𝐾) | |
| 14 | 8, 13 | syl 18 | . . 3 ⊢ (𝜑 → 𝐼 < 𝐾) |
| 15 | 14 | iftrued 4490 | . 2 ⊢ (𝜑 → if(𝐼 < 𝐾, 𝐼, (𝐼 + 1)) = 𝐼) |
| 16 | elfzolt2 13783 | . . . 4 ⊢ (𝐽 ∈ (1..^𝐿) → 𝐽 < 𝐿) | |
| 17 | 11, 16 | syl 18 | . . 3 ⊢ (𝜑 → 𝐽 < 𝐿) |
| 18 | 17 | iftrued 4490 | . 2 ⊢ (𝜑 → if(𝐽 < 𝐿, 𝐽, (𝐽 + 1)) = 𝐽) |
| 19 | 1, 2, 3, 4, 5, 6, 9, 12, 15, 18 | smatlem 34411 | 1 ⊢ (𝜑 → (𝐼𝑆𝐽) = (𝐼𝐴𝐽)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2145 class class class wbr 5103 × cxp 5649 ‘cfv 6531 (class class class)co 7412 ↑m cmap 8831 1c1 11182 + caddc 11184 < clt 11324 ℕcn 12316 ...cfz 13620 ..^cfzo 13768 subMat1csmat 34407 |
| 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-rep 5232 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7740 ax-cnex 11237 ax-resscn 11238 ax-1cn 11239 ax-icn 11240 ax-addcl 11241 ax-addrcl 11242 ax-mulcl 11243 ax-mulrcl 11244 ax-mulcom 11245 ax-addass 11246 ax-mulass 11247 ax-distr 11248 ax-i2m1 11249 ax-1ne0 11250 ax-1rid 11251 ax-rnegex 11252 ax-rrecex 11253 ax-cnre 11254 ax-pre-lttri 11255 ax-pre-lttrn 11256 ax-pre-ltadd 11257 ax-pre-mulgt0 11258 |
| 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 6297 df-ord 6358 df-on 6359 df-lim 6360 df-suc 6361 df-iota 6487 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7867 df-1st 7990 df-2nd 7991 df-frecs 8283 df-wrecs 8314 df-recs 8363 df-rdg 8402 df-er 8701 df-en 8958 df-dom 8959 df-sdom 8960 df-pnf 11326 df-mnf 11327 df-xr 11328 df-ltxr 11329 df-le 11330 df-sub 11524 df-neg 11525 df-nn 12317 df-n0 12588 df-z 12675 df-uz 12947 df-fz 13621 df-fzo 13769 df-smat 34408 |
| This theorem is used by: submat1n 34419 submateq 34423 |
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