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| Mirrors > Home > MPE Home > Th. List > Mathboxes > ax6er | Structured version Visualization version GIF version | ||
| Description: Commuted form of ax6e 2415. (Could be placed right after ax6e 2415). (Contributed by BJ, 15-Sep-2018.) |
| Ref | Expression |
|---|---|
| ax6er | ⊢ ∃𝑥 𝑦 = 𝑥 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax6e 2415 | . 2 ⊢ ∃𝑥 𝑥 = 𝑦 | |
| 2 | equcomi 2047 | . 2 ⊢ (𝑥 = 𝑦 → 𝑦 = 𝑥) | |
| 3 | 1, 2 | eximii 1867 | 1 ⊢ ∃𝑥 𝑦 = 𝑥 |
| Colors of variables: wff setvar class |
| Syntax hints: ∃wex 1809 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-12 2213 ax-13 2404 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-ex 1810 |
| This theorem is referenced by: exlimiieq2 37451 |
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