Theorem sqnprm 12788

Description: A square is never prime. (Contributed by Mario Carneiro, 20-Jun-2015.)

Assertion

Ref	Expression
sqnprm	|- ( A e. ZZ -> -. ( A ^ 2 ) e. Prime )

Proof of Theorem sqnprm

Step	Hyp	Ref	Expression
1		zre 9544	. . . . . 6 |- ( A e. ZZ -> A e. RR )
2	1	adantr 276	. . . . 5 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> A e. RR )
3		absresq 11718	. . . . 5 |- ( A e. RR -> ( ( abs ` A ) ^ 2 ) = ( A ^ 2 ) )
4	2, 3	syl 14	. . . 4 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> ( ( abs ` A ) ^ 2 ) = ( A ^ 2 ) )
5	2	recnd 8267	. . . . . . 7 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> A e. CC )
6	5	abscld 11821	. . . . . 6 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> ( abs ` A ) e. RR )
7	6	recnd 8267	. . . . 5 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> ( abs ` A ) e. CC )
8	7	sqvald 10995	. . . 4 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> ( ( abs ` A ) ^ 2 ) = ( ( abs ` A ) x. ( abs ` A ) ) )
9	4, 8	eqtr3d 2266	. . 3 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> ( A ^ 2 ) = ( ( abs ` A ) x. ( abs ` A ) ) )
10		simpr 110	. . 3 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> ( A ^ 2 ) e. Prime )
11	9, 10	eqeltrrd 2309	. 2 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> ( ( abs ` A ) x. ( abs ` A ) ) e. Prime )
12		nn0abscl 11725	. . . . . 6 |- ( A e. ZZ -> ( abs ` A ) e. NN0 )
13	12	adantr 276	. . . . 5 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> ( abs ` A ) e. NN0 )
14	13	nn0zd 9661	. . . 4 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> ( abs ` A ) e. ZZ )
15		sq1 10958	. . . . . 6 |- ( 1 ^ 2 ) = 1
16		prmuz2 12783	. . . . . . . . 9 |- ( ( A ^ 2 ) e. Prime -> ( A ^ 2 ) e. ( ZZ>= ` 2 ) )
17	16	adantl 277	. . . . . . . 8 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> ( A ^ 2 ) e. ( ZZ>= ` 2 ) )
18		eluz2b1 9896	. . . . . . . . 9 |- ( ( A ^ 2 ) e. ( ZZ>= ` 2 ) <-> ( ( A ^ 2 ) e. ZZ /\ 1 < ( A ^ 2 ) ) )
19	18	simprbi 275	. . . . . . . 8 |- ( ( A ^ 2 ) e. ( ZZ>= ` 2 ) -> 1 < ( A ^ 2 ) )
20	17, 19	syl 14	. . . . . . 7 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> 1 < ( A ^ 2 ) )
21	20, 4	breqtrrd 4121	. . . . . 6 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> 1 < ( ( abs ` A ) ^ 2 ) )
22	15, 21	eqbrtrid 4128	. . . . 5 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> ( 1 ^ 2 ) < ( ( abs ` A ) ^ 2 ) )
23	5	absge0d 11824	. . . . . 6 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> 0 <_ ( abs ` A ) )
24		1re 8238	. . . . . . 7 |- 1 e. RR
25		0le1 8720	. . . . . . 7 |- 0 <_ 1
26		lt2sq 10938	. . . . . . 7 |- ( ( ( 1 e. RR /\ 0 <_ 1 ) /\ ( ( abs ` A ) e. RR /\ 0 <_ ( abs ` A ) ) ) -> ( 1 < ( abs ` A ) <-> ( 1 ^ 2 ) < ( ( abs ` A ) ^ 2 ) ) )
27	24, 25, 26	mpanl12 436	. . . . . 6 |- ( ( ( abs ` A ) e. RR /\ 0 <_ ( abs ` A ) ) -> ( 1 < ( abs ` A ) <-> ( 1 ^ 2 ) < ( ( abs ` A ) ^ 2 ) ) )
28	6, 23, 27	syl2anc 411	. . . . 5 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> ( 1 < ( abs ` A ) <-> ( 1 ^ 2 ) < ( ( abs ` A ) ^ 2 ) ) )
29	22, 28	mpbird 167	. . . 4 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> 1 < ( abs ` A ) )
30		eluz2b1 9896	. . . 4 |- ( ( abs ` A ) e. ( ZZ>= ` 2 ) <-> ( ( abs ` A ) e. ZZ /\ 1 < ( abs ` A ) ) )
31	14, 29, 30	sylanbrc 417	. . 3 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> ( abs ` A ) e. ( ZZ>= ` 2 ) )
32		nprm 12775	. . 3 |- ( ( ( abs ` A ) e. ( ZZ>= ` 2 ) /\ ( abs ` A ) e. ( ZZ>= ` 2 ) ) -> -. ( ( abs ` A ) x. ( abs ` A ) ) e. Prime )
33	31, 31, 32	syl2anc 411	. 2 |- ( ( A e. ZZ /\ ( A ^ 2 ) e. Prime ) -> -. ( ( abs ` A ) x. ( abs ` A ) ) e. Prime )
34	11, 33	pm2.65da 667	1 |- ( A e. ZZ -> -. ( A ^ 2 ) e. Prime )

Syntax hints:   -. wn 3   -> wi 4   /\ wa 104   <-> wb 105   = wceq 1398   e. wcel 2202   class class class wbr 4093   ` cfv 5333  (class class class)co 6028   RRcr 8091   0cc0 8092   1c1 8093   x. cmul 8097   < clt 8273   <_ cle 8274   2c2 9253   NN0cn0 9461   ZZcz 9540   ZZ>=cuz 9816   ^cexp 10863   abscabs 11637   Primecprime 12759

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 619  ax-in2 620  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2204  ax-14 2205  ax-ext 2213  ax-coll 4209  ax-sep 4212  ax-nul 4220  ax-pow 4270  ax-pr 4305  ax-un 4536  ax-setind 4641  ax-iinf 4692  ax-cnex 8183  ax-resscn 8184  ax-1cn 8185  ax-1re 8186  ax-icn 8187  ax-addcl 8188  ax-addrcl 8189  ax-mulcl 8190  ax-mulrcl 8191  ax-addcom 8192  ax-mulcom 8193  ax-addass 8194  ax-mulass 8195  ax-distr 8196  ax-i2m1 8197  ax-0lt1 8198  ax-1rid 8199  ax-0id 8200  ax-rnegex 8201  ax-precex 8202  ax-cnre 8203  ax-pre-ltirr 8204  ax-pre-ltwlin 8205  ax-pre-lttrn 8206  ax-pre-apti 8207  ax-pre-ltadd 8208  ax-pre-mulgt0 8209  ax-pre-mulext 8210  ax-arch 8211  ax-caucvg 8212

This theorem depends on definitions:  df-bi 117  df-dc 843  df-3or 1006  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-ne 2404  df-nel 2499  df-ral 2516  df-rex 2517  df-reu 2518  df-rmo 2519  df-rab 2520  df-v 2805  df-sbc 3033  df-csb 3129  df-dif 3203  df-un 3205  df-in 3207  df-ss 3214  df-nul 3497  df-if 3608  df-pw 3658  df-sn 3679  df-pr 3680  df-op 3682  df-uni 3899  df-int 3934  df-iun 3977  df-br 4094  df-opab 4156  df-mpt 4157  df-tr 4193  df-id 4396  df-po 4399  df-iso 4400  df-iord 4469  df-on 4471  df-ilim 4472  df-suc 4474  df-iom 4695  df-xp 4737  df-rel 4738  df-cnv 4739  df-co 4740  df-dm 4741  df-rn 4742  df-res 4743  df-ima 4744  df-iota 5293  df-fun 5335  df-fn 5336  df-f 5337  df-f1 5338  df-fo 5339  df-f1o 5340  df-fv 5341  df-riota 5981  df-ov 6031  df-oprab 6032  df-mpo 6033  df-1st 6312  df-2nd 6313  df-recs 6514  df-frec 6600  df-1o 6625  df-2o 6626  df-er 6745  df-en 6953  df-pnf 8275  df-mnf 8276  df-xr 8277  df-ltxr 8278  df-le 8279  df-sub 8411  df-neg 8412  df-reap 8814  df-ap 8821  df-div 8912  df-inn 9203  df-2 9261  df-3 9262  df-4 9263  df-n0 9462  df-z 9541  df-uz 9817  df-q 9915  df-rp 9950  df-seqfrec 10773  df-exp 10864  df-cj 11482  df-re 11483  df-im 11484  df-rsqrt 11638  df-abs 11639  df-dvds 12429  df-prm 12760

This theorem is referenced by: (None)