efcvx - Metamath Proof Explorer

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Theorem efcvx 26387

Description: The exponential function on the reals is a strictly convex function. (Contributed by Mario Carneiro, 20-Jun-2015.)

**Assertion**
Ref	Expression
efcvx	⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (exp‘((𝑇 · 𝐴) + ((1 − 𝑇) · 𝐵))) < ((𝑇 · (exp‘𝐴)) + ((1 − 𝑇) · (exp‘𝐵))))

**Proof of Theorem efcvx**
Step	Hyp	Ref	Expression
1		simpl1 1192	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝐴 ∈ ℝ)
2		simpl2 1193	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝐵 ∈ ℝ)
3		simpl3 1194	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝐴 < 𝐵)
4		reeff1o 26385	. . . . . . 7 ⊢ (exp ↾ ℝ):ℝ–1-1-onto→ℝ⁺
5		f1of 6763	. . . . . . 7 ⊢ ((exp ↾ ℝ):ℝ–1-1-onto→ℝ⁺ → (exp ↾ ℝ):ℝ⟶ℝ⁺)
6	4, 5	ax-mp 5	. . . . . 6 ⊢ (exp ↾ ℝ):ℝ⟶ℝ⁺
7		rpssre 12898	. . . . . 6 ⊢ ℝ⁺ ⊆ ℝ
8		fss 6667	. . . . . 6 ⊢ (((exp ↾ ℝ):ℝ⟶ℝ⁺ ∧ ℝ⁺ ⊆ ℝ) → (exp ↾ ℝ):ℝ⟶ℝ)
9	6, 7, 8	mp2an 692	. . . . 5 ⊢ (exp ↾ ℝ):ℝ⟶ℝ
10		iccssre 13329	. . . . . 6 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴[,]𝐵) ⊆ ℝ)
11	1, 2, 10	syl2anc 584	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (𝐴[,]𝐵) ⊆ ℝ)
12		fssres2 6691	. . . . 5 ⊢ (((exp ↾ ℝ):ℝ⟶ℝ ∧ (𝐴[,]𝐵) ⊆ ℝ) → (exp ↾ (𝐴[,]𝐵)):(𝐴[,]𝐵)⟶ℝ)
13	9, 11, 12	sylancr 587	. . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (exp ↾ (𝐴[,]𝐵)):(𝐴[,]𝐵)⟶ℝ)
14		ax-resscn 11063	. . . . 5 ⊢ ℝ ⊆ ℂ
15	11, 14	sstrdi 3947	. . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (𝐴[,]𝐵) ⊆ ℂ)
16		efcn 26381	. . . . . 6 ⊢ exp ∈ (ℂ–cn→ℂ)
17		rescncf 24818	. . . . . 6 ⊢ ((𝐴[,]𝐵) ⊆ ℂ → (exp ∈ (ℂ–cn→ℂ) → (exp ↾ (𝐴[,]𝐵)) ∈ ((𝐴[,]𝐵)–cn→ℂ)))
18	15, 16, 17	mpisyl 21	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (exp ↾ (𝐴[,]𝐵)) ∈ ((𝐴[,]𝐵)–cn→ℂ))
19		cncfcdm 24819	. . . . 5 ⊢ ((ℝ ⊆ ℂ ∧ (exp ↾ (𝐴[,]𝐵)) ∈ ((𝐴[,]𝐵)–cn→ℂ)) → ((exp ↾ (𝐴[,]𝐵)) ∈ ((𝐴[,]𝐵)–cn→ℝ) ↔ (exp ↾ (𝐴[,]𝐵)):(𝐴[,]𝐵)⟶ℝ))
20	14, 18, 19	sylancr 587	. . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((exp ↾ (𝐴[,]𝐵)) ∈ ((𝐴[,]𝐵)–cn→ℝ) ↔ (exp ↾ (𝐴[,]𝐵)):(𝐴[,]𝐵)⟶ℝ))
21	13, 20	mpbird 257	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (exp ↾ (𝐴[,]𝐵)) ∈ ((𝐴[,]𝐵)–cn→ℝ))
22		reefiso 26386	. . . . . 6 ⊢ (exp ↾ ℝ) Isom < , < (ℝ, ℝ⁺)
23	22	a1i 11	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (exp ↾ ℝ) Isom < , < (ℝ, ℝ⁺))
24		ioossre 13307	. . . . . 6 ⊢ (𝐴(,)𝐵) ⊆ ℝ
25	24	a1i 11	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (𝐴(,)𝐵) ⊆ ℝ)
26		eqidd 2732	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((exp ↾ ℝ) “ (𝐴(,)𝐵)) = ((exp ↾ ℝ) “ (𝐴(,)𝐵)))
27		isores3 7269	. . . . 5 ⊢ (((exp ↾ ℝ) Isom < , < (ℝ, ℝ⁺) ∧ (𝐴(,)𝐵) ⊆ ℝ ∧ ((exp ↾ ℝ) “ (𝐴(,)𝐵)) = ((exp ↾ ℝ) “ (𝐴(,)𝐵))) → ((exp ↾ ℝ) ↾ (𝐴(,)𝐵)) Isom < , < ((𝐴(,)𝐵), ((exp ↾ ℝ) “ (𝐴(,)𝐵))))
28	23, 25, 26, 27	syl3anc 1373	. . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((exp ↾ ℝ) ↾ (𝐴(,)𝐵)) Isom < , < ((𝐴(,)𝐵), ((exp ↾ ℝ) “ (𝐴(,)𝐵))))
29		ssid 3957	. . . . . . 7 ⊢ ℝ ⊆ ℝ
30		fss 6667	. . . . . . . . 9 ⊢ (((exp ↾ ℝ):ℝ⟶ℝ ∧ ℝ ⊆ ℂ) → (exp ↾ ℝ):ℝ⟶ℂ)
31	9, 14, 30	mp2an 692	. . . . . . . 8 ⊢ (exp ↾ ℝ):ℝ⟶ℂ
32		eqid 2731	. . . . . . . . 9 ⊢ (TopOpen‘ℂ_fld) = (TopOpen‘ℂ_fld)
33		tgioo4 24721	. . . . . . . . 9 ⊢ (topGen‘ran (,)) = ((TopOpen‘ℂ_fld) ↾_t ℝ)
34	32, 33	dvres 25840	. . . . . . . 8 ⊢ (((ℝ ⊆ ℂ ∧ (exp ↾ ℝ):ℝ⟶ℂ) ∧ (ℝ ⊆ ℝ ∧ (𝐴[,]𝐵) ⊆ ℝ)) → (ℝ D ((exp ↾ ℝ) ↾ (𝐴[,]𝐵))) = ((ℝ D (exp ↾ ℝ)) ↾ ((int‘(topGen‘ran (,)))‘(𝐴[,]𝐵))))
35	14, 31, 34	mpanl12 702	. . . . . . 7 ⊢ ((ℝ ⊆ ℝ ∧ (𝐴[,]𝐵) ⊆ ℝ) → (ℝ D ((exp ↾ ℝ) ↾ (𝐴[,]𝐵))) = ((ℝ D (exp ↾ ℝ)) ↾ ((int‘(topGen‘ran (,)))‘(𝐴[,]𝐵))))
36	29, 11, 35	sylancr 587	. . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (ℝ D ((exp ↾ ℝ) ↾ (𝐴[,]𝐵))) = ((ℝ D (exp ↾ ℝ)) ↾ ((int‘(topGen‘ran (,)))‘(𝐴[,]𝐵))))
37	11	resabs1d 5957	. . . . . . 7 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((exp ↾ ℝ) ↾ (𝐴[,]𝐵)) = (exp ↾ (𝐴[,]𝐵)))
38	37	oveq2d 7362	. . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (ℝ D ((exp ↾ ℝ) ↾ (𝐴[,]𝐵))) = (ℝ D (exp ↾ (𝐴[,]𝐵))))
39		reelprrecn 11098	. . . . . . . . . 10 ⊢ ℝ ∈ {ℝ, ℂ}
40		eff 15988	. . . . . . . . . 10 ⊢ exp:ℂ⟶ℂ
41		ssid 3957	. . . . . . . . . 10 ⊢ ℂ ⊆ ℂ
42		dvef 25912	. . . . . . . . . . . . 13 ⊢ (ℂ D exp) = exp
43	42	dmeqi 5844	. . . . . . . . . . . 12 ⊢ dom (ℂ D exp) = dom exp
44	40	fdmi 6662	. . . . . . . . . . . 12 ⊢ dom exp = ℂ
45	43, 44	eqtri 2754	. . . . . . . . . . 11 ⊢ dom (ℂ D exp) = ℂ
46	14, 45	sseqtrri 3984	. . . . . . . . . 10 ⊢ ℝ ⊆ dom (ℂ D exp)
47		dvres3 25842	. . . . . . . . . 10 ⊢ (((ℝ ∈ {ℝ, ℂ} ∧ exp:ℂ⟶ℂ) ∧ (ℂ ⊆ ℂ ∧ ℝ ⊆ dom (ℂ D exp))) → (ℝ D (exp ↾ ℝ)) = ((ℂ D exp) ↾ ℝ))
48	39, 40, 41, 46, 47	mp4an 693	. . . . . . . . 9 ⊢ (ℝ D (exp ↾ ℝ)) = ((ℂ D exp) ↾ ℝ)
49	42	reseq1i 5924	. . . . . . . . 9 ⊢ ((ℂ D exp) ↾ ℝ) = (exp ↾ ℝ)
50	48, 49	eqtri 2754	. . . . . . . 8 ⊢ (ℝ D (exp ↾ ℝ)) = (exp ↾ ℝ)
51	50	a1i 11	. . . . . . 7 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (ℝ D (exp ↾ ℝ)) = (exp ↾ ℝ))
52		iccntr 24738	. . . . . . . 8 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → ((int‘(topGen‘ran (,)))‘(𝐴[,]𝐵)) = (𝐴(,)𝐵))
53	1, 2, 52	syl2anc 584	. . . . . . 7 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((int‘(topGen‘ran (,)))‘(𝐴[,]𝐵)) = (𝐴(,)𝐵))
54	51, 53	reseq12d 5929	. . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((ℝ D (exp ↾ ℝ)) ↾ ((int‘(topGen‘ran (,)))‘(𝐴[,]𝐵))) = ((exp ↾ ℝ) ↾ (𝐴(,)𝐵)))
55	36, 38, 54	3eqtr3d 2774	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (ℝ D (exp ↾ (𝐴[,]𝐵))) = ((exp ↾ ℝ) ↾ (𝐴(,)𝐵)))
56		isoeq1 7251	. . . . 5 ⊢ ((ℝ D (exp ↾ (𝐴[,]𝐵))) = ((exp ↾ ℝ) ↾ (𝐴(,)𝐵)) → ((ℝ D (exp ↾ (𝐴[,]𝐵))) Isom < , < ((𝐴(,)𝐵), ((exp ↾ ℝ) “ (𝐴(,)𝐵))) ↔ ((exp ↾ ℝ) ↾ (𝐴(,)𝐵)) Isom < , < ((𝐴(,)𝐵), ((exp ↾ ℝ) “ (𝐴(,)𝐵)))))
57	55, 56	syl 17	. . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((ℝ D (exp ↾ (𝐴[,]𝐵))) Isom < , < ((𝐴(,)𝐵), ((exp ↾ ℝ) “ (𝐴(,)𝐵))) ↔ ((exp ↾ ℝ) ↾ (𝐴(,)𝐵)) Isom < , < ((𝐴(,)𝐵), ((exp ↾ ℝ) “ (𝐴(,)𝐵)))))
58	28, 57	mpbird 257	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (ℝ D (exp ↾ (𝐴[,]𝐵))) Isom < , < ((𝐴(,)𝐵), ((exp ↾ ℝ) “ (𝐴(,)𝐵))))
59		simpr 484	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝑇 ∈ (0(,)1))
60		eqid 2731	. . 3 ⊢ ((𝑇 · 𝐴) + ((1 − 𝑇) · 𝐵)) = ((𝑇 · 𝐴) + ((1 − 𝑇) · 𝐵))
61	1, 2, 3, 21, 58, 59, 60	dvcvx 25953	. 2 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((exp ↾ (𝐴[,]𝐵))‘((𝑇 · 𝐴) + ((1 − 𝑇) · 𝐵))) < ((𝑇 · ((exp ↾ (𝐴[,]𝐵))‘𝐴)) + ((1 − 𝑇) · ((exp ↾ (𝐴[,]𝐵))‘𝐵))))
62		ax-1cn 11064	. . . . . . 7 ⊢ 1 ∈ ℂ
63		ioossre 13307	. . . . . . . . 9 ⊢ (0(,)1) ⊆ ℝ
64	63, 59	sselid 3932	. . . . . . . 8 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝑇 ∈ ℝ)
65	64	recnd 11140	. . . . . . 7 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝑇 ∈ ℂ)
66		nncan 11390	. . . . . . 7 ⊢ ((1 ∈ ℂ ∧ 𝑇 ∈ ℂ) → (1 − (1 − 𝑇)) = 𝑇)
67	62, 65, 66	sylancr 587	. . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (1 − (1 − 𝑇)) = 𝑇)
68	67	oveq1d 7361	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((1 − (1 − 𝑇)) · 𝐴) = (𝑇 · 𝐴))
69	68	oveq1d 7361	. . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (((1 − (1 − 𝑇)) · 𝐴) + ((1 − 𝑇) · 𝐵)) = ((𝑇 · 𝐴) + ((1 − 𝑇) · 𝐵)))
70		ioossicc 13333	. . . . . . 7 ⊢ (0(,)1) ⊆ (0[,]1)
71	70, 59	sselid 3932	. . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝑇 ∈ (0[,]1))
72		iirev 24851	. . . . . 6 ⊢ (𝑇 ∈ (0[,]1) → (1 − 𝑇) ∈ (0[,]1))
73	71, 72	syl 17	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (1 − 𝑇) ∈ (0[,]1))
74		lincmb01cmp 13395	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ (1 − 𝑇) ∈ (0[,]1)) → (((1 − (1 − 𝑇)) · 𝐴) + ((1 − 𝑇) · 𝐵)) ∈ (𝐴[,]𝐵))
75	73, 74	syldan 591	. . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (((1 − (1 − 𝑇)) · 𝐴) + ((1 − 𝑇) · 𝐵)) ∈ (𝐴[,]𝐵))
76	69, 75	eqeltrrd 2832	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((𝑇 · 𝐴) + ((1 − 𝑇) · 𝐵)) ∈ (𝐴[,]𝐵))
77	76	fvresd 6842	. 2 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((exp ↾ (𝐴[,]𝐵))‘((𝑇 · 𝐴) + ((1 − 𝑇) · 𝐵))) = (exp‘((𝑇 · 𝐴) + ((1 − 𝑇) · 𝐵))))
78	1	rexrd 11162	. . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝐴 ∈ ℝ^*)
79	2	rexrd 11162	. . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝐵 ∈ ℝ^*)
80	1, 2, 3	ltled 11261	. . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝐴 ≤ 𝐵)
81		lbicc2 13364	. . . . . 6 ⊢ ((𝐴 ∈ ℝ^* ∧ 𝐵 ∈ ℝ^* ∧ 𝐴 ≤ 𝐵) → 𝐴 ∈ (𝐴[,]𝐵))
82	78, 79, 80, 81	syl3anc 1373	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝐴 ∈ (𝐴[,]𝐵))
83	82	fvresd 6842	. . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((exp ↾ (𝐴[,]𝐵))‘𝐴) = (exp‘𝐴))
84	83	oveq2d 7362	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (𝑇 · ((exp ↾ (𝐴[,]𝐵))‘𝐴)) = (𝑇 · (exp‘𝐴)))
85		ubicc2 13365	. . . . . 6 ⊢ ((𝐴 ∈ ℝ^* ∧ 𝐵 ∈ ℝ^* ∧ 𝐴 ≤ 𝐵) → 𝐵 ∈ (𝐴[,]𝐵))
86	78, 79, 80, 85	syl3anc 1373	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝐵 ∈ (𝐴[,]𝐵))
87	86	fvresd 6842	. . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((exp ↾ (𝐴[,]𝐵))‘𝐵) = (exp‘𝐵))
88	87	oveq2d 7362	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((1 − 𝑇) · ((exp ↾ (𝐴[,]𝐵))‘𝐵)) = ((1 − 𝑇) · (exp‘𝐵)))
89	84, 88	oveq12d 7364	. 2 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((𝑇 · ((exp ↾ (𝐴[,]𝐵))‘𝐴)) + ((1 − 𝑇) · ((exp ↾ (𝐴[,]𝐵))‘𝐵))) = ((𝑇 · (exp‘𝐴)) + ((1 − 𝑇) · (exp‘𝐵))))
90	61, 77, 89	3brtr3d 5122	1 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (exp‘((𝑇 · 𝐴) + ((1 − 𝑇) · 𝐵))) < ((𝑇 · (exp‘𝐴)) + ((1 − 𝑇) · (exp‘𝐵))))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 ∧ w3a 1086 = wceq 1541 ∈ wcel 2111 ⊆ wss 3902 {cpr 4578 class class class wbr 5091 dom cdm 5616 ran crn 5617 ↾ cres 5618 “ cima 5619 ⟶wf 6477 –1-1-onto→wf1o 6480 ‘cfv 6481 Isom wiso 6482 (class class class)co 7346 ℂcc 11004 ℝcr 11005 0cc0 11006 1c1 11007 + caddc 11009 · cmul 11011 ℝ^*cxr 11145 < clt 11146 ≤ cle 11147 − cmin 11344 ℝ⁺crp 12890 (,)cioo 13245 [,]cicc 13248 expce 15968 TopOpenctopn 17325 topGenctg 17341 ℂ_fldccnfld 21292 intcnt 22933 –cn→ccncf 24797 D cdv 25792

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 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-rep 5217 ax-sep 5234 ax-nul 5244 ax-pow 5303 ax-pr 5370 ax-un 7668 ax-inf2 9531 ax-cnex 11062 ax-resscn 11063 ax-1cn 11064 ax-icn 11065 ax-addcl 11066 ax-addrcl 11067 ax-mulcl 11068 ax-mulrcl 11069 ax-mulcom 11070 ax-addass 11071 ax-mulass 11072 ax-distr 11073 ax-i2m1 11074 ax-1ne0 11075 ax-1rid 11076 ax-rnegex 11077 ax-rrecex 11078 ax-cnre 11079 ax-pre-lttri 11080 ax-pre-lttrn 11081 ax-pre-ltadd 11082 ax-pre-mulgt0 11083 ax-pre-sup 11084 ax-addf 11085

This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ne 2929 df-nel 3033 df-ral 3048 df-rex 3057 df-rmo 3346 df-reu 3347 df-rab 3396 df-v 3438 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4284 df-if 4476 df-pw 4552 df-sn 4577 df-pr 4579 df-tp 4581 df-op 4583 df-uni 4860 df-int 4898 df-iun 4943 df-iin 4944 df-br 5092 df-opab 5154 df-mpt 5173 df-tr 5199 df-id 5511 df-eprel 5516 df-po 5524 df-so 5525 df-fr 5569 df-se 5570 df-we 5571 df-xp 5622 df-rel 5623 df-cnv 5624 df-co 5625 df-dm 5626 df-rn 5627 df-res 5628 df-ima 5629 df-pred 6248 df-ord 6309 df-on 6310 df-lim 6311 df-suc 6312 df-iota 6437 df-fun 6483 df-fn 6484 df-f 6485 df-f1 6486 df-fo 6487 df-f1o 6488 df-fv 6489 df-isom 6490 df-riota 7303 df-ov 7349 df-oprab 7350 df-mpo 7351 df-of 7610 df-om 7797 df-1st 7921 df-2nd 7922 df-supp 8091 df-frecs 8211 df-wrecs 8242 df-recs 8291 df-rdg 8329 df-1o 8385 df-2o 8386 df-er 8622 df-map 8752 df-pm 8753 df-ixp 8822 df-en 8870 df-dom 8871 df-sdom 8872 df-fin 8873 df-fsupp 9246 df-fi 9295 df-sup 9326 df-inf 9327 df-oi 9396 df-card 9832 df-pnf 11148 df-mnf 11149 df-xr 11150 df-ltxr 11151 df-le 11152 df-sub 11346 df-neg 11347 df-div 11775 df-nn 12126 df-2 12188 df-3 12189 df-4 12190 df-5 12191 df-6 12192 df-7 12193 df-8 12194 df-9 12195 df-n0 12382 df-z 12469 df-dec 12589 df-uz 12733 df-q 12847 df-rp 12891 df-xneg 13011 df-xadd 13012 df-xmul 13013 df-ioo 13249 df-ico 13251 df-icc 13252 df-fz 13408 df-fzo 13555 df-fl 13696 df-seq 13909 df-exp 13969 df-fac 14181 df-bc 14210 df-hash 14238 df-shft 14974 df-cj 15006 df-re 15007 df-im 15008 df-sqrt 15142 df-abs 15143 df-limsup 15378 df-clim 15395 df-rlim 15396 df-sum 15594 df-ef 15974 df-struct 17058 df-sets 17075 df-slot 17093 df-ndx 17105 df-base 17121 df-ress 17142 df-plusg 17174 df-mulr 17175 df-starv 17176 df-sca 17177 df-vsca 17178 df-ip 17179 df-tset 17180 df-ple 17181 df-ds 17183 df-unif 17184 df-hom 17185 df-cco 17186 df-rest 17326 df-topn 17327 df-0g 17345 df-gsum 17346 df-topgen 17347 df-pt 17348 df-prds 17351 df-xrs 17406 df-qtop 17411 df-imas 17412 df-xps 17414 df-mre 17488 df-mrc 17489 df-acs 17491 df-mgm 18548 df-sgrp 18627 df-mnd 18643 df-submnd 18692 df-mulg 18981 df-cntz 19230 df-cmn 19695 df-psmet 21284 df-xmet 21285 df-met 21286 df-bl 21287 df-mopn 21288 df-fbas 21289 df-fg 21290 df-cnfld 21293 df-top 22810 df-topon 22827 df-topsp 22849 df-bases 22862 df-cld 22935 df-ntr 22936 df-cls 22937 df-nei 23014 df-lp 23052 df-perf 23053 df-cn 23143 df-cnp 23144 df-haus 23231 df-cmp 23303 df-tx 23478 df-hmeo 23671 df-fil 23762 df-fm 23854 df-flim 23855 df-flf 23856 df-xms 24236 df-ms 24237 df-tms 24238 df-cncf 24799 df-limc 25795 df-dv 25796

This theorem is referenced by: (None)

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