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Mirrors > Home > MPE Home > Th. List > axc16 | Structured version Visualization version GIF version |
Description: Proof of older axiom ax-c16 35908. (Contributed by NM, 8-Nov-2006.) (Revised by NM, 22-Sep-2017.) |
Ref | Expression |
---|---|
axc16 | ⊢ (∀𝑥 𝑥 = 𝑦 → (𝜑 → ∀𝑥𝜑)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | axc16g 2251 | 1 ⊢ (∀𝑥 𝑥 = 𝑦 → (𝜑 → ∀𝑥𝜑)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∀wal 1526 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1787 ax-4 1801 ax-5 1902 ax-6 1961 ax-7 2006 ax-12 2167 |
This theorem depends on definitions: df-bi 208 df-an 397 df-ex 1772 |
This theorem is referenced by: axc11rv 2256 ax12vALT 2484 bj-ax6elem1 33896 axc11n11r 33914 bj-axc16g16 33915 |
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