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Theorem htpycn 25207
Description: A homotopy is a continuous function. (Contributed by Mario Carneiro, 22-Feb-2015.)
Hypotheses
Ref Expression
ishtpy.1 (𝜑𝐽 ∈ (TopOn‘𝑋))
ishtpy.3 (𝜑𝐹 ∈ (𝐽 Cn 𝐾))
ishtpy.4 (𝜑𝐺 ∈ (𝐽 Cn 𝐾))
Assertion
Ref Expression
htpycn (𝜑 → (𝐹(𝐽 Htpy 𝐾)𝐺) ⊆ ((𝐽 ×t II) Cn 𝐾))

Proof of Theorem htpycn
Dummy variables 𝑠 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 ishtpy.1 . . . 4 (𝜑𝐽 ∈ (TopOn‘𝑋))
2 ishtpy.3 . . . 4 (𝜑𝐹 ∈ (𝐽 Cn 𝐾))
3 ishtpy.4 . . . 4 (𝜑𝐺 ∈ (𝐽 Cn 𝐾))
41, 2, 3ishtpy 25206 . . 3 (𝜑 → ( ∈ (𝐹(𝐽 Htpy 𝐾)𝐺) ↔ ( ∈ ((𝐽 ×t II) Cn 𝐾) ∧ ∀𝑠𝑋 ((𝑠0) = (𝐹𝑠) ∧ (𝑠1) = (𝐺𝑠)))))
5 simpl 488 . . 3 (( ∈ ((𝐽 ×t II) Cn 𝐾) ∧ ∀𝑠𝑋 ((𝑠0) = (𝐹𝑠) ∧ (𝑠1) = (𝐺𝑠))) → ∈ ((𝐽 ×t II) Cn 𝐾))
64, 5biimtrdi 256 . 2 (𝜑 → ( ∈ (𝐹(𝐽 Htpy 𝐾)𝐺) → ∈ ((𝐽 ×t II) Cn 𝐾)))
76ssrdv 3940 1 (𝜑 → (𝐹(𝐽 Htpy 𝐾)𝐺) ⊆ ((𝐽 ×t II) Cn 𝐾))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wa 401   = wceq 1570  wcel 2145  wral 3078  wss 3902  cfv 6537  (class class class)co 7417  0cc0 11128  1c1 11129  TopOnctopon 23141   Cn ccn 23455   ×t ctx 23792  IIcii 25109   Htpy chtpy 25201
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2215  ax-ext 2734  ax-sep 5255  ax-nul 5267  ax-pow 5334  ax-pr 5402  ax-un 7740
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2566  df-eu 2596  df-clab 2741  df-cleq 2754  df-clel 2837  df-nfc 2911  df-ne 2958  df-ral 3079  df-rex 3089  df-rab 3415  df-v 3455  df-sbc 3743  df-csb 3851  df-dif 3905  df-un 3907  df-in 3909  df-ss 3919  df-nul 4283  df-if 4486  df-pw 4562  df-sn 4588  df-pr 4590  df-op 4594  df-uni 4871  df-iun 4956  df-br 5108  df-opab 5172  df-mpt 5191  df-id 5554  df-xp 5665  df-rel 5666  df-cnv 5667  df-co 5668  df-dm 5669  df-rn 5670  df-res 5671  df-ima 5672  df-iota 6493  df-fun 6539  df-fn 6540  df-f 6541  df-fv 6545  df-ov 7420  df-oprab 7421  df-mpo 7422  df-1st 7990  df-2nd 7991  df-map 8832  df-top 23125  df-topon 23142  df-cn 23458  df-htpy 25204
This theorem is used by:  htpycom  25210  htpyco1  25212  htpyco2  25213  htpycc  25214  phtpycn  25217
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