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| Mirrors > Home > MPE Home > Th. List > ssopab2i | Structured version Visualization version GIF version | ||
| Description: Inference of ordered pair abstraction subclass from implication. (Contributed by NM, 5-Apr-1995.) |
| Ref | Expression |
|---|---|
| ssopab2i.1 | ⊢ (𝜑 → 𝜓) |
| Ref | Expression |
|---|---|
| ssopab2i | ⊢ {〈𝑥, 𝑦〉 ∣ 𝜑} ⊆ {〈𝑥, 𝑦〉 ∣ 𝜓} |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssopab2 5521 | . 2 ⊢ (∀𝑥∀𝑦(𝜑 → 𝜓) → {〈𝑥, 𝑦〉 ∣ 𝜑} ⊆ {〈𝑥, 𝑦〉 ∣ 𝜓}) | |
| 2 | ssopab2i.1 | . . 3 ⊢ (𝜑 → 𝜓) | |
| 3 | 2 | ax-gen 1827 | . 2 ⊢ ∀𝑦(𝜑 → 𝜓) |
| 4 | 1, 3 | mpg 1829 | 1 ⊢ {〈𝑥, 𝑦〉 ∣ 𝜑} ⊆ {〈𝑥, 𝑦〉 ∣ 𝜓} |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∀wal 1567 ⊆ wss 3896 {copab 5166 |
| 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-9 2154 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-ss 3897 df-opab 5167 |
| This theorem is used by: elopabran 5536 elopaelxp 5742 opabssxp 5744 relopabiv 5799 funopab4 6582 ssoprab2i 7535 cnvoprab 8076 mptmpoopabbrd 8099 enssdom 9011 cardf2 10031 dfac3 10207 axdc2lem 10533 fpwwe2lem1 10723 canthwe 10743 trclublem 15157 fullfunc 18092 fthfunc 18093 isfull 18096 isfth 18100 ipoval 18713 ipolerval 18715 eqgfval 19397 2ndcctbss 23783 iscgrg 28984 ishpg 29246 nvss 31204 ajfval 31420 afsval 35353 cvmlift2lem12 36197 satf0suclem 36258 fmlasuc0 36267 bj-opabssvv 38208 bj-imdirval2lem 38240 bj-xpcossxp 38247 dicval 42370 areaquad 44355 relopabVD 46019 |
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