efcvx - Metamath Proof Explorer

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Theorem efcvx 25606

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 1190	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝐴 ∈ ℝ)
2		simpl2 1191	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝐵 ∈ ℝ)
3		simpl3 1192	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝐴 < 𝐵)
4		reeff1o 25604	. . . . . . 7 ⊢ (exp ↾ ℝ):ℝ–1-1-onto→ℝ⁺
5		f1of 6714	. . . . . . 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 12736	. . . . . 6 ⊢ ℝ⁺ ⊆ ℝ
8		fss 6615	. . . . . 6 ⊢ (((exp ↾ ℝ):ℝ⟶ℝ⁺ ∧ ℝ⁺ ⊆ ℝ) → (exp ↾ ℝ):ℝ⟶ℝ)
9	6, 7, 8	mp2an 689	. . . . 5 ⊢ (exp ↾ ℝ):ℝ⟶ℝ
10		iccssre 13160	. . . . . 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 6640	. . . . 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 10929	. . . . 5 ⊢ ℝ ⊆ ℂ
15	11, 14	sstrdi 3938	. . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (𝐴[,]𝐵) ⊆ ℂ)
16		efcn 25600	. . . . . 6 ⊢ exp ∈ (ℂ–cn→ℂ)
17		rescncf 24058	. . . . . 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		cncffvrn 24059	. . . . 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 256	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (exp ↾ (𝐴[,]𝐵)) ∈ ((𝐴[,]𝐵)–cn→ℝ))
22		reefiso 25605	. . . . . 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 13139	. . . . . 6 ⊢ (𝐴(,)𝐵) ⊆ ℝ
25	24	a1i 11	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (𝐴(,)𝐵) ⊆ ℝ)
26		eqidd 2741	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((exp ↾ ℝ) “ (𝐴(,)𝐵)) = ((exp ↾ ℝ) “ (𝐴(,)𝐵)))
27		isores3 7202	. . . . 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 1370	. . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((exp ↾ ℝ) ↾ (𝐴(,)𝐵)) Isom < , < ((𝐴(,)𝐵), ((exp ↾ ℝ) “ (𝐴(,)𝐵))))
29		ssid 3948	. . . . . . 7 ⊢ ℝ ⊆ ℝ
30		fss 6615	. . . . . . . . 9 ⊢ (((exp ↾ ℝ):ℝ⟶ℝ ∧ ℝ ⊆ ℂ) → (exp ↾ ℝ):ℝ⟶ℂ)
31	9, 14, 30	mp2an 689	. . . . . . . 8 ⊢ (exp ↾ ℝ):ℝ⟶ℂ
32		eqid 2740	. . . . . . . . 9 ⊢ (TopOpen‘ℂ_fld) = (TopOpen‘ℂ_fld)
33	32	tgioo2 23964	. . . . . . . . 9 ⊢ (topGen‘ran (,)) = ((TopOpen‘ℂ_fld) ↾_t ℝ)
34	32, 33	dvres 25073	. . . . . . . 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 699	. . . . . . 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 5921	. . . . . . 7 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((exp ↾ ℝ) ↾ (𝐴[,]𝐵)) = (exp ↾ (𝐴[,]𝐵)))
38	37	oveq2d 7287	. . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (ℝ D ((exp ↾ ℝ) ↾ (𝐴[,]𝐵))) = (ℝ D (exp ↾ (𝐴[,]𝐵))))
39		reelprrecn 10964	. . . . . . . . . 10 ⊢ ℝ ∈ {ℝ, ℂ}
40		eff 15789	. . . . . . . . . 10 ⊢ exp:ℂ⟶ℂ
41		ssid 3948	. . . . . . . . . 10 ⊢ ℂ ⊆ ℂ
42		dvef 25142	. . . . . . . . . . . . 13 ⊢ (ℂ D exp) = exp
43	42	dmeqi 5812	. . . . . . . . . . . 12 ⊢ dom (ℂ D exp) = dom exp
44	40	fdmi 6610	. . . . . . . . . . . 12 ⊢ dom exp = ℂ
45	43, 44	eqtri 2768	. . . . . . . . . . 11 ⊢ dom (ℂ D exp) = ℂ
46	14, 45	sseqtrri 3963	. . . . . . . . . 10 ⊢ ℝ ⊆ dom (ℂ D exp)
47		dvres3 25075	. . . . . . . . . 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 690	. . . . . . . . 9 ⊢ (ℝ D (exp ↾ ℝ)) = ((ℂ D exp) ↾ ℝ)
49	42	reseq1i 5886	. . . . . . . . 9 ⊢ ((ℂ D exp) ↾ ℝ) = (exp ↾ ℝ)
50	48, 49	eqtri 2768	. . . . . . . 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 23982	. . . . . . . 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 5891	. . . . . 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 2788	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (ℝ D (exp ↾ (𝐴[,]𝐵))) = ((exp ↾ ℝ) ↾ (𝐴(,)𝐵)))
56		isoeq1 7184	. . . . 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 256	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (ℝ D (exp ↾ (𝐴[,]𝐵))) Isom < , < ((𝐴(,)𝐵), ((exp ↾ ℝ) “ (𝐴(,)𝐵))))
59		simpr 485	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝑇 ∈ (0(,)1))
60		eqid 2740	. . 3 ⊢ ((𝑇 · 𝐴) + ((1 − 𝑇) · 𝐵)) = ((𝑇 · 𝐴) + ((1 − 𝑇) · 𝐵))
61	1, 2, 3, 21, 58, 59, 60	dvcvx 25182	. 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 10930	. . . . . . 7 ⊢ 1 ∈ ℂ
63		ioossre 13139	. . . . . . . . 9 ⊢ (0(,)1) ⊆ ℝ
64	63, 59	sselid 3924	. . . . . . . 8 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝑇 ∈ ℝ)
65	64	recnd 11004	. . . . . . 7 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝑇 ∈ ℂ)
66		nncan 11250	. . . . . . 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 7286	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((1 − (1 − 𝑇)) · 𝐴) = (𝑇 · 𝐴))
69	68	oveq1d 7286	. . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (((1 − (1 − 𝑇)) · 𝐴) + ((1 − 𝑇) · 𝐵)) = ((𝑇 · 𝐴) + ((1 − 𝑇) · 𝐵)))
70		ioossicc 13164	. . . . . . 7 ⊢ (0(,)1) ⊆ (0[,]1)
71	70, 59	sselid 3924	. . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝑇 ∈ (0[,]1))
72		iirev 24090	. . . . . 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 13226	. . . . 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 2842	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((𝑇 · 𝐴) + ((1 − 𝑇) · 𝐵)) ∈ (𝐴[,]𝐵))
77	76	fvresd 6791	. 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 11026	. . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝐴 ∈ ℝ^*)
79	2	rexrd 11026	. . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝐵 ∈ ℝ^*)
80	1, 2, 3	ltled 11123	. . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝐴 ≤ 𝐵)
81		lbicc2 13195	. . . . . 6 ⊢ ((𝐴 ∈ ℝ^* ∧ 𝐵 ∈ ℝ^* ∧ 𝐴 ≤ 𝐵) → 𝐴 ∈ (𝐴[,]𝐵))
82	78, 79, 80, 81	syl3anc 1370	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝐴 ∈ (𝐴[,]𝐵))
83	82	fvresd 6791	. . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((exp ↾ (𝐴[,]𝐵))‘𝐴) = (exp‘𝐴))
84	83	oveq2d 7287	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → (𝑇 · ((exp ↾ (𝐴[,]𝐵))‘𝐴)) = (𝑇 · (exp‘𝐴)))
85		ubicc2 13196	. . . . . 6 ⊢ ((𝐴 ∈ ℝ^* ∧ 𝐵 ∈ ℝ^* ∧ 𝐴 ≤ 𝐵) → 𝐵 ∈ (𝐴[,]𝐵))
86	78, 79, 80, 85	syl3anc 1370	. . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → 𝐵 ∈ (𝐴[,]𝐵))
87	86	fvresd 6791	. . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((exp ↾ (𝐴[,]𝐵))‘𝐵) = (exp‘𝐵))
88	87	oveq2d 7287	. . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐴 < 𝐵) ∧ 𝑇 ∈ (0(,)1)) → ((1 − 𝑇) · ((exp ↾ (𝐴[,]𝐵))‘𝐵)) = ((1 − 𝑇) · (exp‘𝐵)))
89	84, 88	oveq12d 7289	. 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 5110	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 205 ∧ wa 396 ∧ w3a 1086 = wceq 1542 ∈ wcel 2110 ⊆ wss 3892 {cpr 4569 class class class wbr 5079 dom cdm 5590 ran crn 5591 ↾ cres 5592 “ cima 5593 ⟶wf 6428 –1-1-onto→wf1o 6431 ‘cfv 6432 Isom wiso 6433 (class class class)co 7271 ℂcc 10870 ℝcr 10871 0cc0 10872 1c1 10873 + caddc 10875 · cmul 10877 ℝ^*cxr 11009 < clt 11010 ≤ cle 11011 − cmin 11205 ℝ⁺crp 12729 (,)cioo 13078 [,]cicc 13081 expce 15769 TopOpenctopn 17130 topGenctg 17146 ℂ_fldccnfld 20595 intcnt 22166 –cn→ccncf 24037 D cdv 25025

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1975 ax-7 2015 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2711 ax-rep 5214 ax-sep 5227 ax-nul 5234 ax-pow 5292 ax-pr 5356 ax-un 7582 ax-inf2 9377 ax-cnex 10928 ax-resscn 10929 ax-1cn 10930 ax-icn 10931 ax-addcl 10932 ax-addrcl 10933 ax-mulcl 10934 ax-mulrcl 10935 ax-mulcom 10936 ax-addass 10937 ax-mulass 10938 ax-distr 10939 ax-i2m1 10940 ax-1ne0 10941 ax-1rid 10942 ax-rnegex 10943 ax-rrecex 10944 ax-cnre 10945 ax-pre-lttri 10946 ax-pre-lttrn 10947 ax-pre-ltadd 10948 ax-pre-mulgt0 10949 ax-pre-sup 10950 ax-addf 10951 ax-mulf 10952

This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1545 df-fal 1555 df-ex 1787 df-nf 1791 df-sb 2072 df-mo 2542 df-eu 2571 df-clab 2718 df-cleq 2732 df-clel 2818 df-nfc 2891 df-ne 2946 df-nel 3052 df-ral 3071 df-rex 3072 df-reu 3073 df-rmo 3074 df-rab 3075 df-v 3433 df-sbc 3721 df-csb 3838 df-dif 3895 df-un 3897 df-in 3899 df-ss 3909 df-pss 3911 df-nul 4263 df-if 4466 df-pw 4541 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4846 df-int 4886 df-iun 4932 df-iin 4933 df-br 5080 df-opab 5142 df-mpt 5163 df-tr 5197 df-id 5490 df-eprel 5496 df-po 5504 df-so 5505 df-fr 5545 df-se 5546 df-we 5547 df-xp 5596 df-rel 5597 df-cnv 5598 df-co 5599 df-dm 5600 df-rn 5601 df-res 5602 df-ima 5603 df-pred 6201 df-ord 6268 df-on 6269 df-lim 6270 df-suc 6271 df-iota 6390 df-fun 6434 df-fn 6435 df-f 6436 df-f1 6437 df-fo 6438 df-f1o 6439 df-fv 6440 df-isom 6441 df-riota 7228 df-ov 7274 df-oprab 7275 df-mpo 7276 df-of 7527 df-om 7707 df-1st 7824 df-2nd 7825 df-supp 7969 df-frecs 8088 df-wrecs 8119 df-recs 8193 df-rdg 8232 df-1o 8288 df-2o 8289 df-er 8481 df-map 8600 df-pm 8601 df-ixp 8669 df-en 8717 df-dom 8718 df-sdom 8719 df-fin 8720 df-fsupp 9107 df-fi 9148 df-sup 9179 df-inf 9180 df-oi 9247 df-card 9698 df-pnf 11012 df-mnf 11013 df-xr 11014 df-ltxr 11015 df-le 11016 df-sub 11207 df-neg 11208 df-div 11633 df-nn 11974 df-2 12036 df-3 12037 df-4 12038 df-5 12039 df-6 12040 df-7 12041 df-8 12042 df-9 12043 df-n0 12234 df-z 12320 df-dec 12437 df-uz 12582 df-q 12688 df-rp 12730 df-xneg 12847 df-xadd 12848 df-xmul 12849 df-ioo 13082 df-ico 13084 df-icc 13085 df-fz 13239 df-fzo 13382 df-fl 13510 df-seq 13720 df-exp 13781 df-fac 13986 df-bc 14015 df-hash 14043 df-shft 14776 df-cj 14808 df-re 14809 df-im 14810 df-sqrt 14944 df-abs 14945 df-limsup 15178 df-clim 15195 df-rlim 15196 df-sum 15396 df-ef 15775 df-struct 16846 df-sets 16863 df-slot 16881 df-ndx 16893 df-base 16911 df-ress 16940 df-plusg 16973 df-mulr 16974 df-starv 16975 df-sca 16976 df-vsca 16977 df-ip 16978 df-tset 16979 df-ple 16980 df-ds 16982 df-unif 16983 df-hom 16984 df-cco 16985 df-rest 17131 df-topn 17132 df-0g 17150 df-gsum 17151 df-topgen 17152 df-pt 17153 df-prds 17156 df-xrs 17211 df-qtop 17216 df-imas 17217 df-xps 17219 df-mre 17293 df-mrc 17294 df-acs 17296 df-mgm 18324 df-sgrp 18373 df-mnd 18384 df-submnd 18429 df-mulg 18699 df-cntz 18921 df-cmn 19386 df-psmet 20587 df-xmet 20588 df-met 20589 df-bl 20590 df-mopn 20591 df-fbas 20592 df-fg 20593 df-cnfld 20596 df-top 22041 df-topon 22058 df-topsp 22080 df-bases 22094 df-cld 22168 df-ntr 22169 df-cls 22170 df-nei 22247 df-lp 22285 df-perf 22286 df-cn 22376 df-cnp 22377 df-haus 22464 df-cmp 22536 df-tx 22711 df-hmeo 22904 df-fil 22995 df-fm 23087 df-flim 23088 df-flf 23089 df-xms 23471 df-ms 23472 df-tms 23473 df-cncf 24039 df-limc 25028 df-dv 25029

This theorem is referenced by: (None)

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