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Mirrors > Home > MPE Home > Th. List > Mathboxes > bj-0 | Structured version Visualization version GIF version |
Description: A syntactic theorem. See the section comment and the comment of bj-1 32659. The full proof (that is, with the syntactic, non-essential steps) does not appear on this webpage. It has five steps and reads $= wph wps wi wch wi $. The only other syntactic theorems in the main part of set.mm are wel 2031 and weq 1931. (Contributed by BJ, 24-Sep-2019.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
bj-0 | wff ((𝜑 → 𝜓) → 𝜒) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wi 4 | 1 wff ((𝜑 → 𝜓) → 𝜒) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 |
This theorem is referenced by: bj-1 32659 |
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