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| Mirrors > Home > MPE Home > Th. List > Mathboxes > ax6er | Structured version Visualization version GIF version | ||
| Description: Commuted form of ax6e 2388. (Could be placed right after ax6e 2388). (Contributed by BJ, 15-Sep-2018.) | 
| Ref | Expression | 
|---|---|
| ax6er | ⊢ ∃𝑥 𝑦 = 𝑥 | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | ax6e 2388 | . 2 ⊢ ∃𝑥 𝑥 = 𝑦 | |
| 2 | equcomi 2016 | . 2 ⊢ (𝑥 = 𝑦 → 𝑦 = 𝑥) | |
| 3 | 1, 2 | eximii 1837 | 1 ⊢ ∃𝑥 𝑦 = 𝑥 | 
| Colors of variables: wff setvar class | 
| Syntax hints: ∃wex 1779 | 
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2007 ax-12 2177 ax-13 2377 | 
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1780 | 
| This theorem is referenced by: exlimiieq2 36836 | 
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