Theorem stge1i 30017

Description: If a state is greater than or equal to 1, it is 1. (Contributed by NM, 11-Nov-1999.) (New usage is discouraged.)

Hypothesis

Ref	Expression
sto1.1	⊢ 𝐴 ∈ Cℋ

Assertion

Ref	Expression
stge1i	⊢ (𝑆 ∈ States → (1 ≤ (𝑆‘𝐴) ↔ (𝑆‘𝐴) = 1))

Proof of Theorem stge1i

Step	Hyp	Ref	Expression
1		sto1.1	. . . . . 6 ⊢ 𝐴 ∈ Cℋ
2		stle1 30004	. . . . . 6 ⊢ (𝑆 ∈ States → (𝐴 ∈ Cℋ → (𝑆‘𝐴) ≤ 1))
3	1, 2	mpi 20	. . . . 5 ⊢ (𝑆 ∈ States → (𝑆‘𝐴) ≤ 1)
4	3	anim1i 616	. . . 4 ⊢ ((𝑆 ∈ States ∧ 1 ≤ (𝑆‘𝐴)) → ((𝑆‘𝐴) ≤ 1 ∧ 1 ≤ (𝑆‘𝐴)))
5	4	ex 415	. . 3 ⊢ (𝑆 ∈ States → (1 ≤ (𝑆‘𝐴) → ((𝑆‘𝐴) ≤ 1 ∧ 1 ≤ (𝑆‘𝐴))))
6		stcl 29995	. . . . 5 ⊢ (𝑆 ∈ States → (𝐴 ∈ Cℋ → (𝑆‘𝐴) ∈ ℝ))
7	1, 6	mpi 20	. . . 4 ⊢ (𝑆 ∈ States → (𝑆‘𝐴) ∈ ℝ)
8		1re 10643	. . . 4 ⊢ 1 ∈ ℝ
9		letri3 10728	. . . 4 ⊢ (((𝑆‘𝐴) ∈ ℝ ∧ 1 ∈ ℝ) → ((𝑆‘𝐴) = 1 ↔ ((𝑆‘𝐴) ≤ 1 ∧ 1 ≤ (𝑆‘𝐴))))
10	7, 8, 9	sylancl 588	. . 3 ⊢ (𝑆 ∈ States → ((𝑆‘𝐴) = 1 ↔ ((𝑆‘𝐴) ≤ 1 ∧ 1 ≤ (𝑆‘𝐴))))
11	5, 10	sylibrd 261	. 2 ⊢ (𝑆 ∈ States → (1 ≤ (𝑆‘𝐴) → (𝑆‘𝐴) = 1))
12		1le1 11270	. . 3 ⊢ 1 ≤ 1
13		breq2 5072	. . 3 ⊢ ((𝑆‘𝐴) = 1 → (1 ≤ (𝑆‘𝐴) ↔ 1 ≤ 1))
14	12, 13	mpbiri 260	. 2 ⊢ ((𝑆‘𝐴) = 1 → 1 ≤ (𝑆‘𝐴))
15	11, 14	impbid1 227	1 ⊢ (𝑆 ∈ States → (1 ≤ (𝑆‘𝐴) ↔ (𝑆‘𝐴) = 1))

Syntax hints:   → wi 4   ↔ wb 208   ∧ wa 398   = wceq 1537   ∈ wcel 2114   class class class wbr 5068  ‘cfv 6357  ℝcr 10538  1c1 10540   ≤ cle 10678   C_ℋ cch 28708  Statescst 28741

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2177  ax-ext 2795  ax-sep 5205  ax-nul 5212  ax-pow 5268  ax-pr 5332  ax-un 7463  ax-cnex 10595  ax-resscn 10596  ax-1cn 10597  ax-icn 10598  ax-addcl 10599  ax-addrcl 10600  ax-mulcl 10601  ax-mulrcl 10602  ax-i2m1 10607  ax-1ne0 10608  ax-rnegex 10610  ax-rrecex 10611  ax-cnre 10612  ax-pre-lttri 10613  ax-pre-lttrn 10614  ax-hilex 28778

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3or 1084  df-3an 1085  df-tru 1540  df-ex 1781  df-nf 1785  df-sb 2070  df-mo 2622  df-eu 2654  df-clab 2802  df-cleq 2816  df-clel 2895  df-nfc 2965  df-ne 3019  df-nel 3126  df-ral 3145  df-rex 3146  df-rab 3149  df-v 3498  df-sbc 3775  df-csb 3886  df-dif 3941  df-un 3943  df-in 3945  df-ss 3954  df-nul 4294  df-if 4470  df-pw 4543  df-sn 4570  df-pr 4572  df-op 4576  df-uni 4841  df-br 5069  df-opab 5131  df-mpt 5149  df-id 5462  df-po 5476  df-so 5477  df-xp 5563  df-rel 5564  df-cnv 5565  df-co 5566  df-dm 5567  df-rn 5568  df-res 5569  df-ima 5570  df-iota 6316  df-fun 6359  df-fn 6360  df-f 6361  df-f1 6362  df-fo 6363  df-f1o 6364  df-fv 6365  df-ov 7161  df-oprab 7162  df-mpo 7163  df-er 8291  df-map 8410  df-en 8512  df-dom 8513  df-sdom 8514  df-pnf 10679  df-mnf 10680  df-xr 10681  df-ltxr 10682  df-le 10683  df-icc 12748  df-sh 28986  df-ch 29000  df-st 29990

This theorem is referenced by:  stm1i  30022