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Mirrors > Home > MPE Home > Th. List > axc16 | Structured version Visualization version GIF version |
Description: Proof of older axiom ax-c16 36027. (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 2257 | 1 ⊢ (∀𝑥 𝑥 = 𝑦 → (𝜑 → ∀𝑥𝜑)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∀wal 1531 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-12 2173 |
This theorem depends on definitions: df-bi 209 df-an 399 df-ex 1777 |
This theorem is referenced by: axc11rv 2262 ax12vALT 2488 bj-ax6elem1 33999 axc11n11r 34017 bj-axc16g16 34018 |
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