sn-rediv1d

Description: A number divided by 1 is itself. (Contributed by SN, 2-Apr-2026)

		Ref	Expression
	Hypothesis	sn-rediv1d.a	$⊢ φ \to A \in ℝ$
	Assertion	sn-rediv1d	Could not format assertion : No typesetting found for \|- ( ph -> ( A /R 1 ) = A ) with typecode \|-

Step	Hyp	Ref	Expression
1		sn-rediv1d.a	$⊢ φ \to A \in ℝ$
2		remullid	$⊢ A \in ℝ \to 1 A = A$
3	1 2	syl	$⊢ φ \to 1 A = A$
4		1red	$⊢ φ \to 1 \in ℝ$
5		ax-1ne0	$⊢ 1 \neq 0$
6	5	a1i	$⊢ φ \to 1 \neq 0$
7	1 1 4 6	redivmuld	Could not format ( ph -> ( ( A /R 1 ) = A <-> ( 1 x. A ) = A ) ) : No typesetting found for \|- ( ph -> ( ( A /R 1 ) = A <-> ( 1 x. A ) = A ) ) with typecode \|-
8	3 7	mpbird	Could not format ( ph -> ( A /R 1 ) = A ) : No typesetting found for \|- ( ph -> ( A /R 1 ) = A ) with typecode \|-

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