| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > 2sqreu | Structured version Visualization version GIF version | ||
| Description: There exists a unique decomposition of a prime of the form 4𝑘 + 1 as a sum of squares of two nonnegative integers. See 2sqnn0 27437 for the existence of such a decomposition. (Contributed by AV, 4-Jun-2023.) (Revised by AV, 25-Jun-2023.) |
| Ref | Expression |
|---|---|
| 2sqreu.1 | ⊢ (𝜑 ↔ (𝑎 ≤ 𝑏 ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃)) |
| Ref | Expression |
|---|---|
| 2sqreu | ⊢ ((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) → (∃!𝑎 ∈ ℕ0 ∃𝑏 ∈ ℕ0 𝜑 ∧ ∃!𝑏 ∈ ℕ0 ∃𝑎 ∈ ℕ0 𝜑)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2sqreulem1 27445 | . 2 ⊢ ((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) → ∃!𝑎 ∈ ℕ0 ∃!𝑏 ∈ ℕ0 (𝑎 ≤ 𝑏 ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃)) | |
| 2 | 2sqreu.1 | . . . . . 6 ⊢ (𝜑 ↔ (𝑎 ≤ 𝑏 ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃)) | |
| 3 | 2 | bicomi 224 | . . . . 5 ⊢ ((𝑎 ≤ 𝑏 ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃) ↔ 𝜑) |
| 4 | 3 | reubii 3373 | . . . 4 ⊢ (∃!𝑏 ∈ ℕ0 (𝑎 ≤ 𝑏 ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃) ↔ ∃!𝑏 ∈ ℕ0 𝜑) |
| 5 | 4 | reubii 3373 | . . 3 ⊢ (∃!𝑎 ∈ ℕ0 ∃!𝑏 ∈ ℕ0 (𝑎 ≤ 𝑏 ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃) ↔ ∃!𝑎 ∈ ℕ0 ∃!𝑏 ∈ ℕ0 𝜑) |
| 6 | 2 | 2sqreulem4 27453 | . . . 4 ⊢ ∀𝑎 ∈ ℕ0 ∃*𝑏 ∈ ℕ0 𝜑 |
| 7 | 2reu1 3879 | . . . 4 ⊢ (∀𝑎 ∈ ℕ0 ∃*𝑏 ∈ ℕ0 𝜑 → (∃!𝑎 ∈ ℕ0 ∃!𝑏 ∈ ℕ0 𝜑 ↔ (∃!𝑎 ∈ ℕ0 ∃𝑏 ∈ ℕ0 𝜑 ∧ ∃!𝑏 ∈ ℕ0 ∃𝑎 ∈ ℕ0 𝜑))) | |
| 8 | 6, 7 | mp1i 13 | . . 3 ⊢ ((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) → (∃!𝑎 ∈ ℕ0 ∃!𝑏 ∈ ℕ0 𝜑 ↔ (∃!𝑎 ∈ ℕ0 ∃𝑏 ∈ ℕ0 𝜑 ∧ ∃!𝑏 ∈ ℕ0 ∃𝑎 ∈ ℕ0 𝜑))) |
| 9 | 5, 8 | bitrid 283 | . 2 ⊢ ((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) → (∃!𝑎 ∈ ℕ0 ∃!𝑏 ∈ ℕ0 (𝑎 ≤ 𝑏 ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃) ↔ (∃!𝑎 ∈ ℕ0 ∃𝑏 ∈ ℕ0 𝜑 ∧ ∃!𝑏 ∈ ℕ0 ∃𝑎 ∈ ℕ0 𝜑))) |
| 10 | 1, 9 | mpbid 232 | 1 ⊢ ((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) → (∃!𝑎 ∈ ℕ0 ∃𝑏 ∈ ℕ0 𝜑 ∧ ∃!𝑏 ∈ ℕ0 ∃𝑎 ∈ ℕ0 𝜑)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1539 ∈ wcel 2107 ∀wral 3050 ∃wrex 3059 ∃!wreu 3362 ∃*wrmo 3363 class class class wbr 5125 (class class class)co 7414 1c1 11139 + caddc 11141 ≤ cle 11279 2c2 12304 4c4 12306 ℕ0cn0 12510 mod cmo 13892 ↑cexp 14085 ℙcprime 16691 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1794 ax-4 1808 ax-5 1909 ax-6 1966 ax-7 2006 ax-8 2109 ax-9 2117 ax-10 2140 ax-11 2156 ax-12 2176 ax-ext 2706 ax-rep 5261 ax-sep 5278 ax-nul 5288 ax-pow 5347 ax-pr 5414 ax-un 7738 ax-cnex 11194 ax-resscn 11195 ax-1cn 11196 ax-icn 11197 ax-addcl 11198 ax-addrcl 11199 ax-mulcl 11200 ax-mulrcl 11201 ax-mulcom 11202 ax-addass 11203 ax-mulass 11204 ax-distr 11205 ax-i2m1 11206 ax-1ne0 11207 ax-1rid 11208 ax-rnegex 11209 ax-rrecex 11210 ax-cnre 11211 ax-pre-lttri 11212 ax-pre-lttrn 11213 ax-pre-ltadd 11214 ax-pre-mulgt0 11215 ax-pre-sup 11216 ax-addf 11217 ax-mulf 11218 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1779 df-nf 1783 df-sb 2064 df-mo 2538 df-eu 2567 df-clab 2713 df-cleq 2726 df-clel 2808 df-nfc 2884 df-ne 2932 df-nel 3036 df-ral 3051 df-rex 3060 df-rmo 3364 df-reu 3365 df-rab 3421 df-v 3466 df-sbc 3773 df-csb 3882 df-dif 3936 df-un 3938 df-in 3940 df-ss 3950 df-pss 3953 df-nul 4316 df-if 4508 df-pw 4584 df-sn 4609 df-pr 4611 df-tp 4613 df-op 4615 df-uni 4890 df-int 4929 df-iun 4975 df-iin 4976 df-br 5126 df-opab 5188 df-mpt 5208 df-tr 5242 df-id 5560 df-eprel 5566 df-po 5574 df-so 5575 df-fr 5619 df-se 5620 df-we 5621 df-xp 5673 df-rel 5674 df-cnv 5675 df-co 5676 df-dm 5677 df-rn 5678 df-res 5679 df-ima 5680 df-pred 6303 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6495 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-isom 6551 df-riota 7371 df-ov 7417 df-oprab 7418 df-mpo 7419 df-of 7680 df-ofr 7681 df-om 7871 df-1st 7997 df-2nd 7998 df-supp 8169 df-tpos 8234 df-frecs 8289 df-wrecs 8320 df-recs 8394 df-rdg 8433 df-1o 8489 df-2o 8490 df-oadd 8493 df-er 8728 df-ec 8730 df-qs 8734 df-map 8851 df-pm 8852 df-ixp 8921 df-en 8969 df-dom 8970 df-sdom 8971 df-fin 8972 df-fsupp 9385 df-sup 9465 df-inf 9466 df-oi 9533 df-dju 9924 df-card 9962 df-pnf 11280 df-mnf 11281 df-xr 11282 df-ltxr 11283 df-le 11284 df-sub 11477 df-neg 11478 df-div 11904 df-nn 12250 df-2 12312 df-3 12313 df-4 12314 df-5 12315 df-6 12316 df-7 12317 df-8 12318 df-9 12319 df-n0 12511 df-xnn0 12584 df-z 12598 df-dec 12718 df-uz 12862 df-q 12974 df-rp 13018 df-fz 13531 df-fzo 13678 df-fl 13815 df-mod 13893 df-seq 14026 df-exp 14086 df-hash 14353 df-cj 15121 df-re 15122 df-im 15123 df-sqrt 15257 df-abs 15258 df-dvds 16274 df-gcd 16515 df-prm 16692 df-phi 16786 df-pc 16858 df-gz 16951 df-struct 17167 df-sets 17184 df-slot 17202 df-ndx 17214 df-base 17231 df-ress 17257 df-plusg 17290 df-mulr 17291 df-starv 17292 df-sca 17293 df-vsca 17294 df-ip 17295 df-tset 17296 df-ple 17297 df-ds 17299 df-unif 17300 df-hom 17301 df-cco 17302 df-0g 17462 df-gsum 17463 df-prds 17468 df-pws 17470 df-imas 17529 df-qus 17530 df-mre 17605 df-mrc 17606 df-acs 17608 df-mgm 18627 df-sgrp 18706 df-mnd 18722 df-mhm 18770 df-submnd 18771 df-grp 18928 df-minusg 18929 df-sbg 18930 df-mulg 19060 df-subg 19115 df-nsg 19116 df-eqg 19117 df-ghm 19205 df-cntz 19309 df-cmn 19773 df-abl 19774 df-mgp 20111 df-rng 20123 df-ur 20152 df-srg 20157 df-ring 20205 df-cring 20206 df-oppr 20307 df-dvdsr 20330 df-unit 20331 df-invr 20361 df-dvr 20374 df-rhm 20445 df-nzr 20486 df-subrng 20519 df-subrg 20543 df-rlreg 20667 df-domn 20668 df-idom 20669 df-drng 20704 df-field 20705 df-lmod 20833 df-lss 20903 df-lsp 20943 df-sra 21145 df-rgmod 21146 df-lidl 21185 df-rsp 21186 df-2idl 21227 df-cnfld 21332 df-zring 21425 df-zrh 21481 df-zn 21484 df-assa 21840 df-asp 21841 df-ascl 21842 df-psr 21896 df-mvr 21897 df-mpl 21898 df-opsr 21900 df-evls 22065 df-evl 22066 df-psr1 22148 df-vr1 22149 df-ply1 22150 df-coe1 22151 df-evl1 22287 df-mdeg 26049 df-deg1 26050 df-mon1 26125 df-uc1p 26126 df-q1p 26127 df-r1p 26128 df-lgs 27294 |
| This theorem is referenced by: 2sqreuop 27461 |
| Copyright terms: Public domain | W3C validator |