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| Mirrors > Home > HSE Home > Th. List > chm1i | Structured version Visualization version GIF version | ||
| Description: Meet with lattice one in Cℋ. (Contributed by NM, 24-Oct-1999.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| ch0le.1 | ⊢ 𝐴 ∈ Cℋ |
| Ref | Expression |
|---|---|
| chm1i | ⊢ (𝐴 ∩ ℋ) = 𝐴 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ch0le.1 | . . 3 ⊢ 𝐴 ∈ Cℋ | |
| 2 | 1 | chssii 31838 | . 2 ⊢ 𝐴 ⊆ ℋ |
| 3 | dfss2 4094 | . 2 ⊢ (𝐴 ⊆ ℋ ↔ (𝐴 ∩ ℋ) = 𝐴) | |
| 4 | 2, 3 | mpbi 233 | 1 ⊢ (𝐴 ∩ ℋ) = 𝐴 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1569 ∈ wcel 2144 ⊆ wss 3895 ∩ cin 4089 ℋchba 31526 Cℋ cch 31536 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 ax-sep 5248 ax-hilex 31606 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-rab 3413 df-v 3452 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-br 5103 df-opab 5167 df-xp 5656 df-cnv 5658 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-iota 6494 df-fv 6546 df-ov 7423 df-sh 31814 df-ch 31828 |
| This theorem is used by: stcltrlem1 32883 |
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