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Mirrors > Home > MPE Home > Th. List > limuni | Structured version Visualization version GIF version |
Description: A limit ordinal is its own supremum (union). (Contributed by NM, 4-May-1995.) |
Ref | Expression |
---|---|
limuni | ⊢ (Lim 𝐴 → 𝐴 = ∪ 𝐴) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-lim 6198 | . 2 ⊢ (Lim 𝐴 ↔ (Ord 𝐴 ∧ 𝐴 ≠ ∅ ∧ 𝐴 = ∪ 𝐴)) | |
2 | 1 | simp3bi 1143 | 1 ⊢ (Lim 𝐴 → 𝐴 = ∪ 𝐴) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1537 ≠ wne 3018 ∅c0 4293 ∪ cuni 4840 Ord word 6192 Lim wlim 6194 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem depends on definitions: df-bi 209 df-an 399 df-3an 1085 df-lim 6198 |
This theorem is referenced by: limuni2 6254 unizlim 6309 nlimsucg 7559 oa0r 8165 om1r 8171 oarec 8190 oeworde 8221 oeeulem 8229 infeq5i 9101 r1sdom 9205 rankxplim3 9312 cflm 9674 coflim 9685 cflim2 9687 cfss 9689 cfslbn 9691 limsucncmpi 33795 dfom6 39905 |
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