Theorem r1rankid 3537

Description: Any set is a subset of the hierarchy of its rank.

Assertion

Ref	Expression
r1rankid	|- (A e. B -> A (_ (R1` (rank` A)))

Proof of Theorem r1rankid

Step	Hyp	Ref	Expression
1		cleqid 1102	. . . . 5 |- (rank` A) = (rank` A)
2		rankr1g 3519	. . . . 5 |- (A e. B -> ((rank` A) = (rank` A) <-> (-. A e. (R1` (rank` A)) /\ A e. (R1` suc (rank` A)))))
3	1, 2	mpbii 168	. . . 4 |- (A e. B -> (-. A e. (R1` (rank` A)) /\ A e. (R1` suc (rank` A))))
4	3	pm3.27d 262	. . 3 |- (A e. B -> A e. (R1` suc (rank` A)))
5		rankon 3515	. . . . 5 |- (rank` A) e. On
6		r1suc 3496	. . . . 5 |- ((rank` A) e. On -> (R1` suc (rank` A)) = P~(R1` (rank` A)))
7	5, 6	ax-mp 6	. . . 4 |- (R1` suc (rank` A)) = P~(R1` (rank` A))
8	7	eleq2i 1153	. . 3 |- (A e. (R1` suc (rank` A)) <-> A e. P~(R1` (rank` A)))
9	4, 8	sylib 173	. 2 |- (A e. B -> A e. P~(R1` (rank` A)))
10		elpwg 1802	. 2 |- (A e. B -> (A e. P~(R1` (rank` A)) <-> A (_ (R1` (rank` A))))
11	9, 10	mpbid 170	1 |- (A e. B -> A (_ (R1` (rank` A)))

Syntax hints:  -. wn 1   -> wi 2   /\ wa 196   = wceq 1091   e. wcel 1092   (_ wss 1487  P~cpw 1798  Oncon0 2199  suc csuc 2201  ` cfv 2422  R1cr1 3485  rankcrnk 3486

This theorem is referenced by:  rankr1id 3539

This theorem was proved from axioms:  ax-1 3  ax-2 4  ax-3 5  ax-mp 6  ax-4 673  ax-5 674  ax-6 675  ax-7 676  ax-gen 677  ax-8 798  ax-9 799  ax-10 800  ax-11 801  ax-12 802  ax-13 804  ax-14 805  ax-16 922  ax-17 925  ax-ext 1074  ax-rep 1075  ax-un 1076  ax-pow 1077  ax-reg 1078  ax-inf 1079

This theorem depends on definitions:  df-bi 128  df-or 197  df-an 198  df-3or 582  df-3an 583  df-ex 679  df-sb 853  df-eu 1009  df-mo 1010  df-clab 1093  df-cleq 1097  df-clel 1099  df-ne 1192  df-ral 1205  df-rex 1206  df-rab 1208  df-v 1349  df-sbc 1441  df-dif 1489  df-un 1490  df-in 1491  df-ss 1492  df-pss 1494  df-nul 1708  df-if 1777  df-pw 1799  df-sn 1811  df-pr 1812  df-tp 1814  df-op 1815  df-uni 1920  df-int 1966  df-iun 1996  df-tr 2042  df-br 2063  df-opab 2098  df-eprel 2122  df-id 2125  df-po 2128  df-so 2138  df-fr 2169  df-we 2186  df-ord 2202  df-on 2203  df-lim 2204  df-suc 2205  df-om 2373  df-xp 2424  df-rel 2425  df-cnv 2426  df-co 2427  df-dm 2428  df-rn 2429  df-res 2430  df-ima 2431  df-fun 2432  df-fn 2433  df-f 2434  df-f1 2435  df-fv 2438  df-rdg 2970  df-r1 3487  df-rank 3488

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