Theorem posgeref 16796

Description: A poset ordering is reflexive, using greater-than-or-equal ordering.

Hypotheses

Ref	Expression
posgelem.b	|- B = (base` K)
posgelem.s	|- S = (geNEW` K)

Assertion

Ref	Expression
posgeref	|- ((K e. PosetNEW /\ X e. B) -> XSX)

Proof of Theorem posgeref

Step	Hyp	Ref	Expression
1		posgelem.b	. . . 4 |- B = (base` K)
2		posgelem.s	. . . 4 |- S = (geNEW` K)
3	1, 2	posgelem 16795	. . 3 |- ((K e. PosetNEW /\ (X e. B /\ X e. B /\ X e. B)) -> (XSX /\ ((XSX /\ XSX) <-> X = X) /\ ((XSX /\ XSX) -> XSX)))
4		id 73	. . . 4 |- (X e. B -> X e. B)
5	4, 4, 4	3jca 1050	. . 3 |- (X e. B -> (X e. B /\ X e. B /\ X e. B))
6	3, 5	sylan2 500	. 2 |- ((K e. PosetNEW /\ X e. B) -> (XSX /\ ((XSX /\ XSX) <-> X = X) /\ ((XSX /\ XSX) -> XSX)))
7		simp1 876	. 2 |- ((XSX /\ ((XSX /\ XSX) <-> X = X) /\ ((XSX /\ XSX) -> XSX)) -> XSX)
8	6, 7	syl 12	1 |- ((K e. PosetNEW /\ X e. B) -> XSX)

Syntax hints:   -> wi 3   <-> wb 163   /\ wa 240   /\ w3a 858   = wceq 1298   e. wcel 1300   class class class wbr 3338  ` cfv 3998  basecbs 16758  PosetNEWcpo 16760  geNEWcpge 16762

This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7  ax-7 1304  ax-gen 1305  ax-8 1306  ax-9 1307  ax-10 1308  ax-11 1309  ax-12 1310  ax-13 1311  ax-14 1312  ax-17 1317  ax-4 1319  ax-5o 1321  ax-6o 1324  ax-9o 1481  ax-10o 1500  ax-16 1580  ax-11o 1588  ax-ext 1865  ax-rep 3428  ax-sep 3438  ax-nul 3445  ax-pow 3481  ax-pr 3524  ax-un 3790

This theorem depends on definitions:  df-bi 164  df-or 241  df-an 242  df-3an 860  df-tru 1262  df-ex 1327  df-sb 1536  df-eu 1775  df-mo 1776  df-clab 1872  df-cleq 1877  df-clel 1880  df-ne 2019  df-ral 2109  df-rex 2110  df-v 2294  df-dif 2597  df-un 2600  df-in 2603  df-ss 2605  df-nul 2876  df-pw 3035  df-sn 3049  df-pr 3050  df-op 3053  df-uni 3178  df-br 3339  df-opab 3396  df-id 3586  df-xp 4000  df-rel 4001  df-cnv 4002  df-co 4003  df-dm 4004  df-rn 4005  df-res 4006  df-ima 4007  df-fun 4008  df-fn 4009  df-fv 4014  df-opr 4886  df-mpt 5006  df-struct 16708  df-poset 16772  df-pge 16792

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