Theorem posprs 18368

Description: A poset is a proset. (Contributed by Stefan O'Rear, 1-Feb-2015.)

Assertion

Ref	Expression
posprs	⊢ (𝐾 ∈ Poset → 𝐾 ∈ Proset )

Proof of Theorem posprs

Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		eqid 2769	. . 3 ⊢ (Base‘𝐾) = (Base‘𝐾)
2		eqid 2769	. . 3 ⊢ (le‘𝐾) = (le‘𝐾)
3	1, 2	ispos2 18367	. 2 ⊢ (𝐾 ∈ Poset ↔ (𝐾 ∈ Proset ∧ ∀𝑥 ∈ (Base‘𝐾)∀𝑦 ∈ (Base‘𝐾)((𝑥(le‘𝐾)𝑦 ∧ 𝑦(le‘𝐾)𝑥) → 𝑥 = 𝑦)))
4	3	simplbi 501	1 ⊢ (𝐾 ∈ Poset → 𝐾 ∈ Proset )

Syntax hints:   → wi 4   ∧ wa 400   ∈ wcel 2149  ∀wral 3085   class class class wbr 5110  ‘cfv 6533  Basecbs 17265  lecple 17313   Proset cproset 18344  Posetcpo 18359

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1822  ax-4 1836  ax-5 1937  ax-6 1994  ax-7 2035  ax-8 2151  ax-9 2159  ax-ext 2741  ax-nul 5268

This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1103  df-tru 1570  df-fal 1580  df-ex 1807  df-sb 2098  df-clab 2748  df-cleq 2761  df-clel 2844  df-ne 2965  df-ral 3086  df-rex 3096  df-rab 3424  df-v 3465  df-sbc 3754  df-dif 3916  df-un 3918  df-ss 3930  df-nul 4295  df-if 4490  df-sn 4592  df-pr 4594  df-op 4598  df-uni 4874  df-br 5111  df-iota 6489  df-fv 6541  df-proset 18346  df-poset 18365

This theorem is referenced by:  posref  18370  isipodrs  18589  pwrssmgc  33257  mgcf1olem1  33258  mgcf1olem2  33259  mgcf1o  33260  nsgmgc  33661  ordtrest2NEWlem  34253  ordtrest2NEW  34254  ordtconnlem1  34255  exbasprs  49633  basresprsfo  49635  discbas  50228  discthin  50229