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Theorem sticksstones3 40104
Description: The range function on strictly monotone functions with finite domain and codomain is an surjective mapping onto 𝐾-elemental sets. (Contributed by metakunt, 28-Sep-2024.)
Hypotheses
Ref Expression
sticksstones3.1 (𝜑𝑁 ∈ ℕ0)
sticksstones3.2 (𝜑𝐾 ∈ ℕ0)
sticksstones3.3 𝐵 = {𝑎 ∈ 𝒫 (1...𝑁) ∣ (♯‘𝑎) = 𝐾}
sticksstones3.4 𝐴 = {𝑓 ∣ (𝑓:(1...𝐾)⟶(1...𝑁) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓𝑥) < (𝑓𝑦)))}
sticksstones3.5 𝐹 = (𝑧𝐴 ↦ ran 𝑧)
Assertion
Ref Expression
sticksstones3 (𝜑𝐹:𝐴onto𝐵)
Distinct variable groups:   𝐴,𝑎   𝐴,𝑓,𝑧   𝑥,𝐵,𝑦,𝑧   𝐾,𝑎,𝑥,𝑦   𝑓,𝐾,𝑥,𝑦   𝑁,𝑎   𝑓,𝑁   𝜑,𝑎,𝑥,𝑦,𝑧   𝜑,𝑓
Allowed substitution hints:   𝐴(𝑥,𝑦)   𝐵(𝑓,𝑎)   𝐹(𝑥,𝑦,𝑧,𝑓,𝑎)   𝐾(𝑧)   𝑁(𝑥,𝑦,𝑧)

Proof of Theorem sticksstones3
Dummy variables 𝑤 𝑣 𝑐 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 sticksstones3.1 . . . . 5 (𝜑𝑁 ∈ ℕ0)
2 sticksstones3.2 . . . . 5 (𝜑𝐾 ∈ ℕ0)
3 sticksstones3.3 . . . . 5 𝐵 = {𝑎 ∈ 𝒫 (1...𝑁) ∣ (♯‘𝑎) = 𝐾}
4 sticksstones3.4 . . . . 5 𝐴 = {𝑓 ∣ (𝑓:(1...𝐾)⟶(1...𝑁) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓𝑥) < (𝑓𝑦)))}
5 sticksstones3.5 . . . . 5 𝐹 = (𝑧𝐴 ↦ ran 𝑧)
61, 2, 3, 4, 5sticksstones2 40103 . . . 4 (𝜑𝐹:𝐴1-1𝐵)
7 df-f1 6438 . . . . . 6 (𝐹:𝐴1-1𝐵 ↔ (𝐹:𝐴𝐵 ∧ Fun 𝐹))
87biimpi 215 . . . . 5 (𝐹:𝐴1-1𝐵 → (𝐹:𝐴𝐵 ∧ Fun 𝐹))
98simpld 495 . . . 4 (𝐹:𝐴1-1𝐵𝐹:𝐴𝐵)
106, 9syl 17 . . 3 (𝜑𝐹:𝐴𝐵)
113eleq2i 2830 . . . . . . . . . . . . . . . . . . . . 21 (𝑤𝐵𝑤 ∈ {𝑎 ∈ 𝒫 (1...𝑁) ∣ (♯‘𝑎) = 𝐾})
1211biimpi 215 . . . . . . . . . . . . . . . . . . . 20 (𝑤𝐵𝑤 ∈ {𝑎 ∈ 𝒫 (1...𝑁) ∣ (♯‘𝑎) = 𝐾})
1312adantl 482 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑤𝐵) → 𝑤 ∈ {𝑎 ∈ 𝒫 (1...𝑁) ∣ (♯‘𝑎) = 𝐾})
14 fveqeq2 6783 . . . . . . . . . . . . . . . . . . . 20 (𝑎 = 𝑤 → ((♯‘𝑎) = 𝐾 ↔ (♯‘𝑤) = 𝐾))
1514elrab 3624 . . . . . . . . . . . . . . . . . . 19 (𝑤 ∈ {𝑎 ∈ 𝒫 (1...𝑁) ∣ (♯‘𝑎) = 𝐾} ↔ (𝑤 ∈ 𝒫 (1...𝑁) ∧ (♯‘𝑤) = 𝐾))
1613, 15sylib 217 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑤𝐵) → (𝑤 ∈ 𝒫 (1...𝑁) ∧ (♯‘𝑤) = 𝐾))
1716simpld 495 . . . . . . . . . . . . . . . . 17 ((𝜑𝑤𝐵) → 𝑤 ∈ 𝒫 (1...𝑁))
1817elpwid 4544 . . . . . . . . . . . . . . . 16 ((𝜑𝑤𝐵) → 𝑤 ⊆ (1...𝑁))
1918sseld 3920 . . . . . . . . . . . . . . 15 ((𝜑𝑤𝐵) → (𝑐𝑤𝑐 ∈ (1...𝑁)))
2019imp 407 . . . . . . . . . . . . . 14 (((𝜑𝑤𝐵) ∧ 𝑐𝑤) → 𝑐 ∈ (1...𝑁))
21203impa 1109 . . . . . . . . . . . . 13 ((𝜑𝑤𝐵𝑐𝑤) → 𝑐 ∈ (1...𝑁))
22 elfznn 13285 . . . . . . . . . . . . 13 (𝑐 ∈ (1...𝑁) → 𝑐 ∈ ℕ)
2321, 22syl 17 . . . . . . . . . . . 12 ((𝜑𝑤𝐵𝑐𝑤) → 𝑐 ∈ ℕ)
2423nnred 11988 . . . . . . . . . . 11 ((𝜑𝑤𝐵𝑐𝑤) → 𝑐 ∈ ℝ)
25243expa 1117 . . . . . . . . . 10 (((𝜑𝑤𝐵) ∧ 𝑐𝑤) → 𝑐 ∈ ℝ)
2625ex 413 . . . . . . . . 9 ((𝜑𝑤𝐵) → (𝑐𝑤𝑐 ∈ ℝ))
2726ssrdv 3927 . . . . . . . 8 ((𝜑𝑤𝐵) → 𝑤 ⊆ ℝ)
28 ltso 11055 . . . . . . . . 9 < Or ℝ
29 soss 5523 . . . . . . . . 9 (𝑤 ⊆ ℝ → ( < Or ℝ → < Or 𝑤))
3028, 29mpi 20 . . . . . . . 8 (𝑤 ⊆ ℝ → < Or 𝑤)
3127, 30syl 17 . . . . . . 7 ((𝜑𝑤𝐵) → < Or 𝑤)
32 fzfid 13693 . . . . . . . 8 ((𝜑𝑤𝐵) → (1...𝑁) ∈ Fin)
3332, 18ssfid 9042 . . . . . . 7 ((𝜑𝑤𝐵) → 𝑤 ∈ Fin)
34 fz1iso 14176 . . . . . . 7 (( < Or 𝑤𝑤 ∈ Fin) → ∃𝑣 𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤))
3531, 33, 34syl2anc 584 . . . . . 6 ((𝜑𝑤𝐵) → ∃𝑣 𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤))
36 df-isom 6442 . . . . . . . . . . . . . . . . . . 19 (𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤) ↔ (𝑣:(1...(♯‘𝑤))–1-1-onto𝑤 ∧ ∀𝑥 ∈ (1...(♯‘𝑤))∀𝑦 ∈ (1...(♯‘𝑤))(𝑥 < 𝑦 ↔ (𝑣𝑥) < (𝑣𝑦))))
3736biimpi 215 . . . . . . . . . . . . . . . . . 18 (𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤) → (𝑣:(1...(♯‘𝑤))–1-1-onto𝑤 ∧ ∀𝑥 ∈ (1...(♯‘𝑤))∀𝑦 ∈ (1...(♯‘𝑤))(𝑥 < 𝑦 ↔ (𝑣𝑥) < (𝑣𝑦))))
38373ad2ant3 1134 . . . . . . . . . . . . . . . . 17 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → (𝑣:(1...(♯‘𝑤))–1-1-onto𝑤 ∧ ∀𝑥 ∈ (1...(♯‘𝑤))∀𝑦 ∈ (1...(♯‘𝑤))(𝑥 < 𝑦 ↔ (𝑣𝑥) < (𝑣𝑦))))
3938simpld 495 . . . . . . . . . . . . . . . 16 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → 𝑣:(1...(♯‘𝑤))–1-1-onto𝑤)
4016simprd 496 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑤𝐵) → (♯‘𝑤) = 𝐾)
41 oveq2 7283 . . . . . . . . . . . . . . . . . . . 20 ((♯‘𝑤) = 𝐾 → (1...(♯‘𝑤)) = (1...𝐾))
4241f1oeq2d 6712 . . . . . . . . . . . . . . . . . . 19 ((♯‘𝑤) = 𝐾 → (𝑣:(1...(♯‘𝑤))–1-1-onto𝑤𝑣:(1...𝐾)–1-1-onto𝑤))
4340, 42syl 17 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑤𝐵) → (𝑣:(1...(♯‘𝑤))–1-1-onto𝑤𝑣:(1...𝐾)–1-1-onto𝑤))
4443biimpd 228 . . . . . . . . . . . . . . . . 17 ((𝜑𝑤𝐵) → (𝑣:(1...(♯‘𝑤))–1-1-onto𝑤𝑣:(1...𝐾)–1-1-onto𝑤))
45443adant3 1131 . . . . . . . . . . . . . . . 16 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → (𝑣:(1...(♯‘𝑤))–1-1-onto𝑤𝑣:(1...𝐾)–1-1-onto𝑤))
4639, 45mpd 15 . . . . . . . . . . . . . . 15 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → 𝑣:(1...𝐾)–1-1-onto𝑤)
47 f1of 6716 . . . . . . . . . . . . . . 15 (𝑣:(1...𝐾)–1-1-onto𝑤𝑣:(1...𝐾)⟶𝑤)
4846, 47syl 17 . . . . . . . . . . . . . 14 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → 𝑣:(1...𝐾)⟶𝑤)
4948ffnd 6601 . . . . . . . . . . . . 13 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → 𝑣 Fn (1...𝐾))
50 ovexd 7310 . . . . . . . . . . . . 13 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → (1...𝐾) ∈ V)
5149, 50fnexd 7094 . . . . . . . . . . . 12 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → 𝑣 ∈ V)
52183adant3 1131 . . . . . . . . . . . . . 14 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → 𝑤 ⊆ (1...𝑁))
53 fss 6617 . . . . . . . . . . . . . 14 ((𝑣:(1...𝐾)⟶𝑤𝑤 ⊆ (1...𝑁)) → 𝑣:(1...𝐾)⟶(1...𝑁))
5448, 52, 53syl2anc 584 . . . . . . . . . . . . 13 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → 𝑣:(1...𝐾)⟶(1...𝑁))
5538simprd 496 . . . . . . . . . . . . . . 15 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → ∀𝑥 ∈ (1...(♯‘𝑤))∀𝑦 ∈ (1...(♯‘𝑤))(𝑥 < 𝑦 ↔ (𝑣𝑥) < (𝑣𝑦)))
56 biimp 214 . . . . . . . . . . . . . . . . . 18 ((𝑥 < 𝑦 ↔ (𝑣𝑥) < (𝑣𝑦)) → (𝑥 < 𝑦 → (𝑣𝑥) < (𝑣𝑦)))
5756a1i 11 . . . . . . . . . . . . . . . . 17 ((((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) ∧ 𝑥 ∈ (1...(♯‘𝑤))) ∧ 𝑦 ∈ (1...(♯‘𝑤))) → ((𝑥 < 𝑦 ↔ (𝑣𝑥) < (𝑣𝑦)) → (𝑥 < 𝑦 → (𝑣𝑥) < (𝑣𝑦))))
5857ralimdva 3108 . . . . . . . . . . . . . . . 16 (((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) ∧ 𝑥 ∈ (1...(♯‘𝑤))) → (∀𝑦 ∈ (1...(♯‘𝑤))(𝑥 < 𝑦 ↔ (𝑣𝑥) < (𝑣𝑦)) → ∀𝑦 ∈ (1...(♯‘𝑤))(𝑥 < 𝑦 → (𝑣𝑥) < (𝑣𝑦))))
5958ralimdva 3108 . . . . . . . . . . . . . . 15 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → (∀𝑥 ∈ (1...(♯‘𝑤))∀𝑦 ∈ (1...(♯‘𝑤))(𝑥 < 𝑦 ↔ (𝑣𝑥) < (𝑣𝑦)) → ∀𝑥 ∈ (1...(♯‘𝑤))∀𝑦 ∈ (1...(♯‘𝑤))(𝑥 < 𝑦 → (𝑣𝑥) < (𝑣𝑦))))
6055, 59mpd 15 . . . . . . . . . . . . . 14 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → ∀𝑥 ∈ (1...(♯‘𝑤))∀𝑦 ∈ (1...(♯‘𝑤))(𝑥 < 𝑦 → (𝑣𝑥) < (𝑣𝑦)))
6140adantr 481 . . . . . . . . . . . . . . . . 17 (((𝜑𝑤𝐵) ∧ 𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → (♯‘𝑤) = 𝐾)
62613impa 1109 . . . . . . . . . . . . . . . 16 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → (♯‘𝑤) = 𝐾)
6362oveq2d 7291 . . . . . . . . . . . . . . 15 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → (1...(♯‘𝑤)) = (1...𝐾))
6463raleqdv 3348 . . . . . . . . . . . . . . . 16 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → (∀𝑦 ∈ (1...(♯‘𝑤))(𝑥 < 𝑦 → (𝑣𝑥) < (𝑣𝑦)) ↔ ∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑣𝑥) < (𝑣𝑦))))
6564adantr 481 . . . . . . . . . . . . . . 15 (((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) ∧ 𝑥 ∈ (1...(♯‘𝑤))) → (∀𝑦 ∈ (1...(♯‘𝑤))(𝑥 < 𝑦 → (𝑣𝑥) < (𝑣𝑦)) ↔ ∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑣𝑥) < (𝑣𝑦))))
6663, 65raleqbidva 3354 . . . . . . . . . . . . . 14 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → (∀𝑥 ∈ (1...(♯‘𝑤))∀𝑦 ∈ (1...(♯‘𝑤))(𝑥 < 𝑦 → (𝑣𝑥) < (𝑣𝑦)) ↔ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑣𝑥) < (𝑣𝑦))))
6760, 66mpbid 231 . . . . . . . . . . . . 13 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑣𝑥) < (𝑣𝑦)))
6854, 67jca 512 . . . . . . . . . . . 12 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → (𝑣:(1...𝐾)⟶(1...𝑁) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑣𝑥) < (𝑣𝑦))))
69 feq1 6581 . . . . . . . . . . . . 13 (𝑓 = 𝑣 → (𝑓:(1...𝐾)⟶(1...𝑁) ↔ 𝑣:(1...𝐾)⟶(1...𝑁)))
70 fveq1 6773 . . . . . . . . . . . . . . . 16 (𝑓 = 𝑣 → (𝑓𝑥) = (𝑣𝑥))
71 fveq1 6773 . . . . . . . . . . . . . . . 16 (𝑓 = 𝑣 → (𝑓𝑦) = (𝑣𝑦))
7270, 71breq12d 5087 . . . . . . . . . . . . . . 15 (𝑓 = 𝑣 → ((𝑓𝑥) < (𝑓𝑦) ↔ (𝑣𝑥) < (𝑣𝑦)))
7372imbi2d 341 . . . . . . . . . . . . . 14 (𝑓 = 𝑣 → ((𝑥 < 𝑦 → (𝑓𝑥) < (𝑓𝑦)) ↔ (𝑥 < 𝑦 → (𝑣𝑥) < (𝑣𝑦))))
74732ralbidv 3129 . . . . . . . . . . . . 13 (𝑓 = 𝑣 → (∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓𝑥) < (𝑓𝑦)) ↔ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑣𝑥) < (𝑣𝑦))))
7569, 74anbi12d 631 . . . . . . . . . . . 12 (𝑓 = 𝑣 → ((𝑓:(1...𝐾)⟶(1...𝑁) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓𝑥) < (𝑓𝑦))) ↔ (𝑣:(1...𝐾)⟶(1...𝑁) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑣𝑥) < (𝑣𝑦)))))
7651, 68, 75elabd 3612 . . . . . . . . . . 11 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → 𝑣 ∈ {𝑓 ∣ (𝑓:(1...𝐾)⟶(1...𝑁) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓𝑥) < (𝑓𝑦)))})
774eleq2i 2830 . . . . . . . . . . 11 (𝑣𝐴𝑣 ∈ {𝑓 ∣ (𝑓:(1...𝐾)⟶(1...𝑁) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓𝑥) < (𝑓𝑦)))})
7876, 77sylibr 233 . . . . . . . . . 10 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → 𝑣𝐴)
795a1i 11 . . . . . . . . . . . . . . . 16 ((𝜑𝑣𝐴) → 𝐹 = (𝑧𝐴 ↦ ran 𝑧))
80 simpr 485 . . . . . . . . . . . . . . . . 17 (((𝜑𝑣𝐴) ∧ 𝑧 = 𝑣) → 𝑧 = 𝑣)
8180rneqd 5847 . . . . . . . . . . . . . . . 16 (((𝜑𝑣𝐴) ∧ 𝑧 = 𝑣) → ran 𝑧 = ran 𝑣)
82 simpr 485 . . . . . . . . . . . . . . . 16 ((𝜑𝑣𝐴) → 𝑣𝐴)
83 rnexg 7751 . . . . . . . . . . . . . . . . 17 (𝑣𝐴 → ran 𝑣 ∈ V)
8482, 83syl 17 . . . . . . . . . . . . . . . 16 ((𝜑𝑣𝐴) → ran 𝑣 ∈ V)
8579, 81, 82, 84fvmptd 6882 . . . . . . . . . . . . . . 15 ((𝜑𝑣𝐴) → (𝐹𝑣) = ran 𝑣)
8685ex 413 . . . . . . . . . . . . . 14 (𝜑 → (𝑣𝐴 → (𝐹𝑣) = ran 𝑣))
87863ad2ant1 1132 . . . . . . . . . . . . 13 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → (𝑣𝐴 → (𝐹𝑣) = ran 𝑣))
8878, 87mpd 15 . . . . . . . . . . . 12 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → (𝐹𝑣) = ran 𝑣)
89 dff1o2 6721 . . . . . . . . . . . . . . 15 (𝑣:(1...𝐾)–1-1-onto𝑤 ↔ (𝑣 Fn (1...𝐾) ∧ Fun 𝑣 ∧ ran 𝑣 = 𝑤))
9089biimpi 215 . . . . . . . . . . . . . 14 (𝑣:(1...𝐾)–1-1-onto𝑤 → (𝑣 Fn (1...𝐾) ∧ Fun 𝑣 ∧ ran 𝑣 = 𝑤))
9190simp3d 1143 . . . . . . . . . . . . 13 (𝑣:(1...𝐾)–1-1-onto𝑤 → ran 𝑣 = 𝑤)
9246, 91syl 17 . . . . . . . . . . . 12 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → ran 𝑣 = 𝑤)
9388, 92eqtrd 2778 . . . . . . . . . . 11 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → (𝐹𝑣) = 𝑤)
9493eqcomd 2744 . . . . . . . . . 10 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → 𝑤 = (𝐹𝑣))
9578, 94jca 512 . . . . . . . . 9 ((𝜑𝑤𝐵𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → (𝑣𝐴𝑤 = (𝐹𝑣)))
96953expa 1117 . . . . . . . 8 (((𝜑𝑤𝐵) ∧ 𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤)) → (𝑣𝐴𝑤 = (𝐹𝑣)))
9796ex 413 . . . . . . 7 ((𝜑𝑤𝐵) → (𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤) → (𝑣𝐴𝑤 = (𝐹𝑣))))
9897eximdv 1920 . . . . . 6 ((𝜑𝑤𝐵) → (∃𝑣 𝑣 Isom < , < ((1...(♯‘𝑤)), 𝑤) → ∃𝑣(𝑣𝐴𝑤 = (𝐹𝑣))))
9935, 98mpd 15 . . . . 5 ((𝜑𝑤𝐵) → ∃𝑣(𝑣𝐴𝑤 = (𝐹𝑣)))
100 df-rex 3070 . . . . 5 (∃𝑣𝐴 𝑤 = (𝐹𝑣) ↔ ∃𝑣(𝑣𝐴𝑤 = (𝐹𝑣)))
10199, 100sylibr 233 . . . 4 ((𝜑𝑤𝐵) → ∃𝑣𝐴 𝑤 = (𝐹𝑣))
102101ralrimiva 3103 . . 3 (𝜑 → ∀𝑤𝐵𝑣𝐴 𝑤 = (𝐹𝑣))
10310, 102jca 512 . 2 (𝜑 → (𝐹:𝐴𝐵 ∧ ∀𝑤𝐵𝑣𝐴 𝑤 = (𝐹𝑣)))
104 dffo3 6978 . . 3 (𝐹:𝐴onto𝐵 ↔ (𝐹:𝐴𝐵 ∧ ∀𝑤𝐵𝑣𝐴 𝑤 = (𝐹𝑣)))
105104a1i 11 . 2 (𝜑 → (𝐹:𝐴onto𝐵 ↔ (𝐹:𝐴𝐵 ∧ ∀𝑤𝐵𝑣𝐴 𝑤 = (𝐹𝑣))))
106103, 105mpbird 256 1 (𝜑𝐹:𝐴onto𝐵)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 205  wa 396  w3a 1086   = wceq 1539  wex 1782  wcel 2106  {cab 2715  wral 3064  wrex 3065  {crab 3068  Vcvv 3432  wss 3887  𝒫 cpw 4533   class class class wbr 5074  cmpt 5157   Or wor 5502  ccnv 5588  ran crn 5590  Fun wfun 6427   Fn wfn 6428  wf 6429  1-1wf1 6430  ontowfo 6431  1-1-ontowf1o 6432  cfv 6433   Isom wiso 6434  (class class class)co 7275  Fincfn 8733  cr 10870  1c1 10872   < clt 11009  cn 11973  0cn0 12233  ...cfz 13239  chash 14044
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-10 2137  ax-11 2154  ax-12 2171  ax-ext 2709  ax-rep 5209  ax-sep 5223  ax-nul 5230  ax-pow 5288  ax-pr 5352  ax-un 7588  ax-cnex 10927  ax-resscn 10928  ax-1cn 10929  ax-icn 10930  ax-addcl 10931  ax-addrcl 10932  ax-mulcl 10933  ax-mulrcl 10934  ax-mulcom 10935  ax-addass 10936  ax-mulass 10937  ax-distr 10938  ax-i2m1 10939  ax-1ne0 10940  ax-1rid 10941  ax-rnegex 10942  ax-rrecex 10943  ax-cnre 10944  ax-pre-lttri 10945  ax-pre-lttrn 10946  ax-pre-ltadd 10947  ax-pre-mulgt0 10948  ax-pre-sup 10949
This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3or 1087  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2068  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2816  df-nfc 2889  df-ne 2944  df-nel 3050  df-ral 3069  df-rex 3070  df-rmo 3071  df-reu 3072  df-rab 3073  df-v 3434  df-sbc 3717  df-csb 3833  df-dif 3890  df-un 3892  df-in 3894  df-ss 3904  df-pss 3906  df-nul 4257  df-if 4460  df-pw 4535  df-sn 4562  df-pr 4564  df-op 4568  df-uni 4840  df-int 4880  df-iun 4926  df-br 5075  df-opab 5137  df-mpt 5158  df-tr 5192  df-id 5489  df-eprel 5495  df-po 5503  df-so 5504  df-fr 5544  df-se 5545  df-we 5546  df-xp 5595  df-rel 5596  df-cnv 5597  df-co 5598  df-dm 5599  df-rn 5600  df-res 5601  df-ima 5602  df-pred 6202  df-ord 6269  df-on 6270  df-lim 6271  df-suc 6272  df-iota 6391  df-fun 6435  df-fn 6436  df-f 6437  df-f1 6438  df-fo 6439  df-f1o 6440  df-fv 6441  df-isom 6442  df-riota 7232  df-ov 7278  df-oprab 7279  df-mpo 7280  df-om 7713  df-1st 7831  df-2nd 7832  df-frecs 8097  df-wrecs 8128  df-recs 8202  df-rdg 8241  df-1o 8297  df-er 8498  df-en 8734  df-dom 8735  df-sdom 8736  df-fin 8737  df-sup 9201  df-inf 9202  df-oi 9269  df-card 9697  df-pnf 11011  df-mnf 11012  df-xr 11013  df-ltxr 11014  df-le 11015  df-sub 11207  df-neg 11208  df-nn 11974  df-n0 12234  df-z 12320  df-uz 12583  df-fz 13240  df-hash 14045
This theorem is referenced by:  sticksstones4  40105
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