Theorem bnj1047

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	bnj1047.1	$$⊢\rho \leftrightarrow \forall j\in n\left(j\mathrm{E}i\to \underset{\dot{}}{[}j/i\underset{\dot{}}{]}\eta \right)$$
	bnj1047.2	No typesetting found for |- ( et' <-> [. j / i ]. et ) with typecode |-
Assertion	bnj1047	Could not format assertion : No typesetting found for |- ( rh <-> A. j e. n ( j _E i -> et' ) ) with typecode |-

Proof

Step	Hyp	Ref	Expression
1		bnj1047.1	$$⊢\rho \leftrightarrow \forall j\in n\left(j\mathrm{E}i\to \underset{\dot{}}{[}j/i\underset{\dot{}}{]}\eta \right)$$
2		bnj1047.2	Could not format ( et' <-> [. j / i ]. et ) : No typesetting found for |- ( et' <-> [. j / i ]. et ) with typecode |-
3	2	imbi2i	Could not format ( ( j _E i -> et' ) <-> ( j _E i -> [. j / i ]. et ) ) : No typesetting found for |- ( ( j _E i -> et' ) <-> ( j _E i -> [. j / i ]. et ) ) with typecode |-
4	3	ralbii	Could not format ( A. j e. n ( j _E i -> et' ) <-> A. j e. n ( j _E i -> [. j / i ]. et ) ) : No typesetting found for |- ( A. j e. n ( j _E i -> et' ) <-> A. j e. n ( j _E i -> [. j / i ]. et ) ) with typecode |-
5	1 4	bitr4i	Could not format ( rh <-> A. j e. n ( j _E i -> et' ) ) : No typesetting found for |- ( rh <-> A. j e. n ( j _E i -> et' ) ) with typecode |-