Theorem pcprod 14919

Description: The product of the primes taken to their respective powers reconstructs the original number. (Contributed by Mario Carneiro, 12-Mar-2014.)

Hypothesis

Ref	Expression
pcprod.1	|- F = ( n e. NN |-> if ( n e. Prime , ( n ^ ( n pCnt N ) ) , 1 ) )

Assertion

Ref	Expression
pcprod	|- ( N e. NN -> ( seq 1 ( x. , F ) ` N ) = N )

Distinct variable group:   n, N

Allowed substitution hint:   F( n)

Proof of Theorem pcprod

Dummy variable p is distinct from all other variables.

Step	Hyp	Ref	Expression
1		pcprod.1	. . . . . 6 |- F = ( n e. NN |-> if ( n e. Prime , ( n ^ ( n pCnt N ) ) , 1 ) )
2		pccl 14878	. . . . . . . . 9 |- ( ( n e. Prime /\ N e. NN ) -> ( n pCnt N ) e. NN0 )
3	2	ancoms 460	. . . . . . . 8 |- ( ( N e. NN /\ n e. Prime ) -> ( n pCnt N ) e. NN0 )
4	3	ralrimiva 2809	. . . . . . 7 |- ( N e. NN -> A. n e. Prime ( n pCnt N ) e. NN0 )
5	4	adantl 473	. . . . . 6 |- ( ( p e. Prime /\ N e. NN ) -> A. n e. Prime ( n pCnt N ) e. NN0 )
6		simpr 468	. . . . . 6 |- ( ( p e. Prime /\ N e. NN ) -> N e. NN )
7		simpl 464	. . . . . 6 |- ( ( p e. Prime /\ N e. NN ) -> p e. Prime )
8		oveq1 6315	. . . . . 6 |- ( n = p -> ( n pCnt N ) = ( p pCnt N ) )
9	1, 5, 6, 7, 8	pcmpt 14916	. . . . 5 |- ( ( p e. Prime /\ N e. NN ) -> ( p pCnt ( seq 1 ( x. , F ) ` N ) ) = if ( p <_ N , ( p pCnt N ) , 0 ) )
10		iftrue 3878	. . . . . . 7 |- ( p <_ N -> if ( p <_ N , ( p pCnt N ) , 0 ) = ( p pCnt N ) )
11	10	adantl 473	. . . . . 6 |- ( ( ( p e. Prime /\ N e. NN ) /\ p <_ N ) -> if ( p <_ N , ( p pCnt N ) , 0 ) = ( p pCnt N ) )
12		iffalse 3881	. . . . . . . 8 |- ( -. p <_ N -> if ( p <_ N , ( p pCnt N ) , 0 ) = 0 )
13	12	adantl 473	. . . . . . 7 |- ( ( ( p e. Prime /\ N e. NN ) /\ -. p <_ N ) -> if ( p <_ N , ( p pCnt N ) , 0 ) = 0 )
14		prmz 14705	. . . . . . . . . 10 |- ( p e. Prime -> p e. ZZ )
15		dvdsle 14427	. . . . . . . . . 10 |- ( ( p e. ZZ /\ N e. NN ) -> ( p || N -> p <_ N ) )
16	14, 15	sylan 479	. . . . . . . . 9 |- ( ( p e. Prime /\ N e. NN ) -> ( p || N -> p <_ N ) )
17	16	con3dimp 448	. . . . . . . 8 |- ( ( ( p e. Prime /\ N e. NN ) /\ -. p <_ N ) -> -. p || N )
18		pceq0 14899	. . . . . . . . 9 |- ( ( p e. Prime /\ N e. NN ) -> ( ( p pCnt N ) = 0 <-> -. p || N ) )
19	18	adantr 472	. . . . . . . 8 |- ( ( ( p e. Prime /\ N e. NN ) /\ -. p <_ N ) -> ( ( p pCnt N ) = 0 <-> -. p || N ) )
20	17, 19	mpbird 240	. . . . . . 7 |- ( ( ( p e. Prime /\ N e. NN ) /\ -. p <_ N ) -> ( p pCnt N ) = 0 )
21	13, 20	eqtr4d 2508	. . . . . 6 |- ( ( ( p e. Prime /\ N e. NN ) /\ -. p <_ N ) -> if ( p <_ N , ( p pCnt N ) , 0 ) = ( p pCnt N ) )
22	11, 21	pm2.61dan 808	. . . . 5 |- ( ( p e. Prime /\ N e. NN ) -> if ( p <_ N , ( p pCnt N ) , 0 ) = ( p pCnt N ) )
23	9, 22	eqtrd 2505	. . . 4 |- ( ( p e. Prime /\ N e. NN ) -> ( p pCnt ( seq 1 ( x. , F ) ` N ) ) = ( p pCnt N ) )
24	23	ancoms 460	. . 3 |- ( ( N e. NN /\ p e. Prime ) -> ( p pCnt ( seq 1 ( x. , F ) ` N ) ) = ( p pCnt N ) )
25	24	ralrimiva 2809	. 2 |- ( N e. NN -> A. p e. Prime ( p pCnt ( seq 1 ( x. , F ) ` N ) ) = ( p pCnt N ) )
26	1, 4	pcmptcl 14915	. . . . . 6 |- ( N e. NN -> ( F : NN --> NN /\ seq 1 ( x. , F ) : NN --> NN ) )
27	26	simprd 470	. . . . 5 |- ( N e. NN -> seq 1 ( x. , F ) : NN --> NN )
28		ffvelrn 6035	. . . . 5 |- ( ( seq 1 ( x. , F ) : NN --> NN /\ N e. NN ) -> ( seq 1 ( x. , F ) ` N ) e. NN )
29	27, 28	mpancom 682	. . . 4 |- ( N e. NN -> ( seq 1 ( x. , F ) ` N ) e. NN )
30	29	nnnn0d 10949	. . 3 |- ( N e. NN -> ( seq 1 ( x. , F ) ` N ) e. NN0 )
31		nnnn0 10900	. . 3 |- ( N e. NN -> N e. NN0 )
32		pc11 14908	. . 3 |- ( ( ( seq 1 ( x. , F ) ` N ) e. NN0 /\ N e. NN0 ) -> ( ( seq 1 ( x. , F ) ` N ) = N <-> A. p e. Prime ( p pCnt ( seq 1 ( x. , F ) ` N ) ) = ( p pCnt N ) ) )
33	30, 31, 32	syl2anc 673	. 2 |- ( N e. NN -> ( ( seq 1 ( x. , F ) ` N ) = N <-> A. p e. Prime ( p pCnt ( seq 1 ( x. , F ) ` N ) ) = ( p pCnt N ) ) )
34	25, 33	mpbird 240	1 |- ( N e. NN -> ( seq 1 ( x. , F ) ` N ) = N )

Syntax hints:   -. wn 3   -> wi 4   <-> wb 189   /\ wa 376   = wceq 1452   e. wcel 1904   A.wral 2756   ifcif 3872   class class class wbr 4395   |-> cmpt 4454   -->wf 5585   ` cfv 5589  (class class class)co 6308   0cc0 9557   1c1 9558   x. cmul 9562   <_ cle 9694   NNcn 10631   NN0cn0 10893   ZZcz 10961   seqcseq 12251   ^cexp 12310   || cdvds 14382   Primecprime 14701   pCnt cpc 14865

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1677  ax-4 1690  ax-5 1766  ax-6 1813  ax-7 1859  ax-8 1906  ax-9 1913  ax-10 1932  ax-11 1937  ax-12 1950  ax-13 2104  ax-ext 2451  ax-sep 4518  ax-nul 4527  ax-pow 4579  ax-pr 4639  ax-un 6602  ax-cnex 9613  ax-resscn 9614  ax-1cn 9615  ax-icn 9616  ax-addcl 9617  ax-addrcl 9618  ax-mulcl 9619  ax-mulrcl 9620  ax-mulcom 9621  ax-addass 9622  ax-mulass 9623  ax-distr 9624  ax-i2m1 9625  ax-1ne0 9626  ax-1rid 9627  ax-rnegex 9628  ax-rrecex 9629  ax-cnre 9630  ax-pre-lttri 9631  ax-pre-lttrn 9632  ax-pre-ltadd 9633  ax-pre-mulgt0 9634  ax-pre-sup 9635

This theorem depends on definitions:  df-bi 190  df-or 377  df-an 378  df-3or 1008  df-3an 1009  df-tru 1455  df-fal 1458  df-ex 1672  df-nf 1676  df-sb 1806  df-eu 2323  df-mo 2324  df-clab 2458  df-cleq 2464  df-clel 2467  df-nfc 2601  df-ne 2643  df-nel 2644  df-ral 2761  df-rex 2762  df-reu 2763  df-rmo 2764  df-rab 2765  df-v 3033  df-sbc 3256  df-csb 3350  df-dif 3393  df-un 3395  df-in 3397  df-ss 3404  df-pss 3406  df-nul 3723  df-if 3873  df-pw 3944  df-sn 3960  df-pr 3962  df-tp 3964  df-op 3966  df-uni 4191  df-int 4227  df-iun 4271  df-br 4396  df-opab 4455  df-mpt 4456  df-tr 4491  df-eprel 4750  df-id 4754  df-po 4760  df-so 4761  df-fr 4798  df-we 4800  df-xp 4845  df-rel 4846  df-cnv 4847  df-co 4848  df-dm 4849  df-rn 4850  df-res 4851  df-ima 4852  df-pred 5387  df-ord 5433  df-on 5434  df-lim 5435  df-suc 5436  df-iota 5553  df-fun 5591  df-fn 5592  df-f 5593  df-f1 5594  df-fo 5595  df-f1o 5596  df-fv 5597  df-riota 6270  df-ov 6311  df-oprab 6312  df-mpt2 6313  df-om 6712  df-1st 6812  df-2nd 6813  df-wrecs 7046  df-recs 7108  df-rdg 7146  df-1o 7200  df-2o 7201  df-oadd 7204  df-er 7381  df-en 7588  df-dom 7589  df-sdom 7590  df-fin 7591  df-sup 7974  df-inf 7975  df-pnf 9695  df-mnf 9696  df-xr 9697  df-ltxr 9698  df-le 9699  df-sub 9882  df-neg 9883  df-div 10292  df-nn 10632  df-2 10690  df-3 10691  df-n0 10894  df-z 10962  df-uz 11183  df-q 11288  df-rp 11326  df-fz 11811  df-fl 12061  df-mod 12130  df-seq 12252  df-exp 12311  df-cj 13239  df-re 13240  df-im 13241  df-sqrt 13375  df-abs 13376  df-dvds 14383  df-gcd 14548  df-prm 14702  df-pc 14866

This theorem is referenced by:  pclogsum  24222