Theorem stge1i 30009

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 29996	. . . . . 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 29987	. . . . 5 ⊢ (𝑆 ∈ States → (𝐴 ∈ Cℋ → (𝑆‘𝐴) ∈ ℝ))
7	1, 6	mpi 20	. . . 4 ⊢ (𝑆 ∈ States → (𝑆‘𝐴) ∈ ℝ)
8		1re 10635	. . . 4 ⊢ 1 ∈ ℝ
9		letri3 10720	. . . 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 11262	. . 3 ⊢ 1 ≤ 1
13		breq2 5062	. . 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 1533   ∈ wcel 2110   class class class wbr 5058  ‘cfv 6349  ℝcr 10530  1c1 10532   ≤ cle 10670   C_ℋ cch 28700  Statescst 28733

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1907  ax-6 1966  ax-7 2011  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2157  ax-12 2173  ax-ext 2793  ax-sep 5195  ax-nul 5202  ax-pow 5258  ax-pr 5321  ax-un 7455  ax-cnex 10587  ax-resscn 10588  ax-1cn 10589  ax-icn 10590  ax-addcl 10591  ax-addrcl 10592  ax-mulcl 10593  ax-mulrcl 10594  ax-i2m1 10599  ax-1ne0 10600  ax-rnegex 10602  ax-rrecex 10603  ax-cnre 10604  ax-pre-lttri 10605  ax-pre-lttrn 10606  ax-hilex 28770

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3or 1084  df-3an 1085  df-tru 1536  df-ex 1777  df-nf 1781  df-sb 2066  df-mo 2618  df-eu 2650  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ne 3017  df-nel 3124  df-ral 3143  df-rex 3144  df-rab 3147  df-v 3496  df-sbc 3772  df-csb 3883  df-dif 3938  df-un 3940  df-in 3942  df-ss 3951  df-nul 4291  df-if 4467  df-pw 4540  df-sn 4561  df-pr 4563  df-op 4567  df-uni 4832  df-br 5059  df-opab 5121  df-mpt 5139  df-id 5454  df-po 5468  df-so 5469  df-xp 5555  df-rel 5556  df-cnv 5557  df-co 5558  df-dm 5559  df-rn 5560  df-res 5561  df-ima 5562  df-iota 6308  df-fun 6351  df-fn 6352  df-f 6353  df-f1 6354  df-fo 6355  df-f1o 6356  df-fv 6357  df-ov 7153  df-oprab 7154  df-mpo 7155  df-er 8283  df-map 8402  df-en 8504  df-dom 8505  df-sdom 8506  df-pnf 10671  df-mnf 10672  df-xr 10673  df-ltxr 10674  df-le 10675  df-icc 12739  df-sh 28978  df-ch 28992  df-st 29982

This theorem is referenced by:  stm1i  30014