Metamath Proof Explorer


Theorem bnj1093

Description: Technical lemma for bnj69 . This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem). (Contributed by Jonathan Ben-Naim, 3-Jun-2011) (New usage is discouraged.)

Ref Expression
Hypotheses bnj1093.1 No typesetting found for |- E. j ( ( ( th /\ ta /\ ch ) /\ ph0 ) -> ( f ` i ) C_ B ) with typecode |-
bnj1093.2 ⊢ ψ ↔ ∀ i ∈ ω suc ⁡ i ∈ n → f ⁡ suc ⁡ i = ⋃ y ∈ f ⁡ i pred y A R
bnj1093.3 ⊢ χ ↔ n ∈ D ∧ f Fn n ∧ φ ∧ ψ
Assertion bnj1093 Could not format assertion : No typesetting found for |- ( ( th /\ ta /\ ch /\ ze ) -> A. i E. j ( ph0 -> ( f ` i ) C_ B ) ) with typecode |-

Proof

Step Hyp Ref Expression
1 bnj1093.1 Could not format E. j ( ( ( th /\ ta /\ ch ) /\ ph0 ) -> ( f ` i ) C_ B ) : No typesetting found for |- E. j ( ( ( th /\ ta /\ ch ) /\ ph0 ) -> ( f ` i ) C_ B ) with typecode |-
2 bnj1093.2 ⊢ ψ ↔ ∀ i ∈ ω suc ⁡ i ∈ n → f ⁡ suc ⁡ i = ⋃ y ∈ f ⁡ i pred y A R
3 bnj1093.3 ⊢ χ ↔ n ∈ D ∧ f Fn n ∧ φ ∧ ψ
4 2 bnj1095 ⊢ ψ → ∀ i ψ
5 4 3 bnj1096 ⊢ χ → ∀ i χ
6 5 bnj1350 ⊢ θ ∧ τ ∧ χ → ∀ i θ ∧ τ ∧ χ
7 impexp Could not format ( ( ( ( th /\ ta /\ ch ) /\ ph0 ) -> ( f ` i ) C_ B ) <-> ( ( th /\ ta /\ ch ) -> ( ph0 -> ( f ` i ) C_ B ) ) ) : No typesetting found for |- ( ( ( ( th /\ ta /\ ch ) /\ ph0 ) -> ( f ` i ) C_ B ) <-> ( ( th /\ ta /\ ch ) -> ( ph0 -> ( f ` i ) C_ B ) ) ) with typecode |-
8 7 exbii Could not format ( E. j ( ( ( th /\ ta /\ ch ) /\ ph0 ) -> ( f ` i ) C_ B ) <-> E. j ( ( th /\ ta /\ ch ) -> ( ph0 -> ( f ` i ) C_ B ) ) ) : No typesetting found for |- ( E. j ( ( ( th /\ ta /\ ch ) /\ ph0 ) -> ( f ` i ) C_ B ) <-> E. j ( ( th /\ ta /\ ch ) -> ( ph0 -> ( f ` i ) C_ B ) ) ) with typecode |-
9 1 8 mpbi Could not format E. j ( ( th /\ ta /\ ch ) -> ( ph0 -> ( f ` i ) C_ B ) ) : No typesetting found for |- E. j ( ( th /\ ta /\ ch ) -> ( ph0 -> ( f ` i ) C_ B ) ) with typecode |-
10 9 19.37iv Could not format ( ( th /\ ta /\ ch ) -> E. j ( ph0 -> ( f ` i ) C_ B ) ) : No typesetting found for |- ( ( th /\ ta /\ ch ) -> E. j ( ph0 -> ( f ` i ) C_ B ) ) with typecode |-
11 6 10 alrimih Could not format ( ( th /\ ta /\ ch ) -> A. i E. j ( ph0 -> ( f ` i ) C_ B ) ) : No typesetting found for |- ( ( th /\ ta /\ ch ) -> A. i E. j ( ph0 -> ( f ` i ) C_ B ) ) with typecode |-
12 11 bnj721 Could not format ( ( th /\ ta /\ ch /\ ze ) -> A. i E. j ( ph0 -> ( f ` i ) C_ B ) ) : No typesetting found for |- ( ( th /\ ta /\ ch /\ ze ) -> A. i E. j ( ph0 -> ( f ` i ) C_ B ) ) with typecode |-