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| Mirrors > Home > MPE Home > Th. List > 1lgs | Structured version Visualization version GIF version | ||
| Description: The Legendre symbol at 1. See example 1 in [ApostolNT] p. 180. (Contributed by Mario Carneiro, 28-Apr-2016.) |
| Ref | Expression |
|---|---|
| 1lgs | ⊢ (𝑁 ∈ ℤ → (1 /L 𝑁) = 1) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sq1 14146 | . . 3 ⊢ (1↑2) = 1 | |
| 2 | 1 | oveq1i 7366 | . 2 ⊢ ((1↑2) /L 𝑁) = (1 /L 𝑁) |
| 3 | 1gcd 16491 | . . 3 ⊢ (𝑁 ∈ ℤ → (1 gcd 𝑁) = 1) | |
| 4 | 1z 12546 | . . . . 5 ⊢ 1 ∈ ℤ | |
| 5 | ax-1ne0 11096 | . . . . 5 ⊢ 1 ≠ 0 | |
| 6 | 4, 5 | pm3.2i 470 | . . . 4 ⊢ (1 ∈ ℤ ∧ 1 ≠ 0) |
| 7 | lgssq 27288 | . . . 4 ⊢ (((1 ∈ ℤ ∧ 1 ≠ 0) ∧ 𝑁 ∈ ℤ ∧ (1 gcd 𝑁) = 1) → ((1↑2) /L 𝑁) = 1) | |
| 8 | 6, 7 | mp3an1 1451 | . . 3 ⊢ ((𝑁 ∈ ℤ ∧ (1 gcd 𝑁) = 1) → ((1↑2) /L 𝑁) = 1) |
| 9 | 3, 8 | mpdan 688 | . 2 ⊢ (𝑁 ∈ ℤ → ((1↑2) /L 𝑁) = 1) |
| 10 | 2, 9 | eqtr3id 2784 | 1 ⊢ (𝑁 ∈ ℤ → (1 /L 𝑁) = 1) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ≠ wne 2930 (class class class)co 7356 0cc0 11027 1c1 11028 2c2 12225 ℤcz 12513 ↑cexp 14012 gcd cgcd 16452 /L clgs 27245 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2184 ax-ext 2707 ax-rep 5201 ax-sep 5220 ax-nul 5230 ax-pow 5296 ax-pr 5364 ax-un 7678 ax-cnex 11083 ax-resscn 11084 ax-1cn 11085 ax-icn 11086 ax-addcl 11087 ax-addrcl 11088 ax-mulcl 11089 ax-mulrcl 11090 ax-mulcom 11091 ax-addass 11092 ax-mulass 11093 ax-distr 11094 ax-i2m1 11095 ax-1ne0 11096 ax-1rid 11097 ax-rnegex 11098 ax-rrecex 11099 ax-cnre 11100 ax-pre-lttri 11101 ax-pre-lttrn 11102 ax-pre-ltadd 11103 ax-pre-mulgt0 11104 ax-pre-sup 11105 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2538 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2810 df-nfc 2884 df-ne 2931 df-nel 3035 df-ral 3050 df-rex 3060 df-rmo 3340 df-reu 3341 df-rab 3388 df-v 3429 df-sbc 3726 df-csb 3834 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-pss 3905 df-nul 4264 df-if 4457 df-pw 4533 df-sn 4558 df-pr 4560 df-op 4564 df-uni 4841 df-int 4880 df-iun 4925 df-br 5075 df-opab 5137 df-mpt 5156 df-tr 5182 df-id 5515 df-eprel 5520 df-po 5528 df-so 5529 df-fr 5573 df-we 5575 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-pred 6254 df-ord 6315 df-on 6316 df-lim 6317 df-suc 6318 df-iota 6443 df-fun 6489 df-fn 6490 df-f 6491 df-f1 6492 df-fo 6493 df-f1o 6494 df-fv 6495 df-riota 7313 df-ov 7359 df-oprab 7360 df-mpo 7361 df-om 7807 df-1st 7931 df-2nd 7932 df-frecs 8220 df-wrecs 8251 df-recs 8300 df-rdg 8338 df-1o 8394 df-2o 8395 df-oadd 8398 df-er 8632 df-en 8883 df-dom 8884 df-sdom 8885 df-fin 8886 df-sup 9344 df-inf 9345 df-dju 9814 df-card 9852 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11368 df-neg 11369 df-div 11797 df-nn 12164 df-2 12233 df-3 12234 df-4 12235 df-5 12236 df-6 12237 df-7 12238 df-8 12239 df-9 12240 df-n0 12427 df-xnn0 12500 df-z 12514 df-uz 12778 df-q 12888 df-rp 12932 df-fz 13451 df-fzo 13598 df-fl 13740 df-mod 13818 df-seq 13953 df-exp 14013 df-hash 14282 df-cj 15050 df-re 15051 df-im 15052 df-sqrt 15186 df-abs 15187 df-dvds 16211 df-gcd 16453 df-prm 16630 df-phi 16725 df-pc 16797 df-lgs 27246 |
| This theorem is referenced by: lgsdinn0 27296 lgsdchr 27306 |
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